I dug up this old document I created long ago when I was absolutely in love with AoM 
I really wanted Celtic mythology in the game, so decided to create my own in the hopes in might inspire someone at Ensemble. When reading, bare in mind that this was based on research as well as I could get it, but some was also a bit of a stretch to fill in gaps. A lot of these ideas have already been taken since Retold has come out. Anyway, maybe you’ll find it interesting
CELTS:
FAVOUR:
Druids build altars, which they perform sacrifices at. They use resources gathered to do this. Only three altars can be built, and only one druid can worship per altar. The player can select what resources are being offered to the gods, by clicking on a gold, food and/or wood icon at the altar. The most favour that can be gained per minute, per altar is 12. All three resources are then being used with, per minute, 20 wood giving 2 favour, 20 gold giving 4 favour and 20 food giving 6 favour. Therefore the most favour that can be gained by all three altars, with all resources being offered is 36 per minute.
GODPOWERS:
Farms of Eden: This is a first age GP. It provides the player with lush farms from Eden. Casting it on you Town Centre will give you three special farms. Peasants collect 25% more food from them. They are classified as farms, so are affected by all agricultural researchers.
Faithful Flock: This is a first age GP. When cast, it provides the player with a flock of 6 sheep. These sheep are the same as any other heardable animal. They can change ownership if left unguarded. There meat content grows depending on which age you cast the power. The power can be cast on any part of the land, as long as there is line of sight, and therefore can be donated to allies.
SHEEP:
HACK AMOUR: 5%
PIERCE AMOUR: 20%
CRUSH AMOUR: 99%
HIT POINTS: 25
MEAT: 250 (1st Age), 300 (2nd Age), 325 (3rd Age), 375 (4th Age)
Walls of Fire: This is a first age GP. When cast, all your building are, individually, surrounded by a wall fire. This power last 50 seconds. Enemy units are then unable to attack these buildings during this time. Only ranged weapons, such as archers or siege can breech this defence. However all mortal range siege and archers have their attack damage reduced by 50%
Levitation: This is a second age GP. It has a medium area of effect. Casting it on an enemy army will cause a few of the units to be sucked up into a vortex and suspended there for about 45 seconds. They cannot attack or be attacked during this time. Effects all units, except trade units, titans or siege.
Capital: This is a second age GP. Casting it on an empty settlement, this power will build, over a time of 10 seconds, a capital. Capitals are stronger than Town Centres, have a greater attack and population holding capacity. It can be repaired. It has 5 more population slots than any other Town Centre.
CAPITAL:
PIERCE DAMAGE: 20
HACK AMOUR: 58%
PEIRCE AMOUR: 97%
CRUSH AMOUR: 20%
HIT POINTS: 5000
Shifting Gales: This is a second age GP. It effects the whole map. Strong winds being to blow, making trees sway and creating small dust storms. The strong winds aid your archers, increasing the speed of their arrows, making them do 20% more damage. Your siege weapons and ships also have their attack boosted by 15%, because their projectiles move quicker. It hinders your enemies siege, archers and ships, making their shots slow, and reducing their effect by 25% and making them inaccurate. This 30 seconds power only effects mortal archers, siege and ships.
Time Freeze: This is a third age GP. It affects a large area, almost a whole screen. Cast it on an area to freeze time. Every unit, nature and building aspect will freeze. Like pausing the game. It will freeze every thing in the area not directly associated with you or your allies. It will last for 1 minute. Everything that has been frozen may not be attacked, built, hunted, chopped down etc. Once the power has ended the area will become re-animated, continuing as if nothing happened.
Drought: This is a third age GP. It effects the entire map. It causes the sun to sear down on the land. All huntable animals will lose both hit points and food over the powers 25 second rein. Each animal will lose 2 hit points and 3 food per second. However, only 75% of the units food can be lost in total. When the hit points run out, the unit succumbs to the drought and dies. The drought also effects all farms. It take 6 hit points per second, for you enemy, and 3 hit points for yours and allied farms. 50 % Less food is also gathered from all farms on the map.
Plague: This is a third age GP. It originally effects only one unit. Casting it on this mortal unit, causes it to become infected with the plague. Over the power’s run of 45 seconds, it will continue to take 4 hit points from the infected unit per second. This plague is highly contagious and will infect any unit in the plagued unit’s range. Provided they are in it for more than 3 seconds. It cannot be cast on, or effect heroes, myth units, siege, ships or trade units.
Statue of Bravery: This is a fourth age GP. Once cast, it summons a giant lion statue. The statue can be brought to life, to attack. Once animated he can attack, but cannot be healed in this state. Your peasants can heal him in stone form. To do this, he must be placed back on his pedestal and he will return to statue form. If his pedestal is destroyed he will not be able to be healed. The lion can be killed both in statue form and in living form.
LIVING LION
HACK DAMAGE: 40
CRUSH DAMAGE: 50
HACK AMOUR: 55%
PIERCE AMOUR: 67%
CRUSH AMOUR 80%
HIT POINTS: 1500
STATUE LION ON PEDESTAL (same as pedestal only)
HACK AMOUR: 75%
PIERCE AMOUR: 80%
CRUSH AMOUR 20%
HIT POINTS: 5000
Resurrection: This is a fourth age GP. It has a large area of effect, but can only be cast on military units. Once cast over a group of alive military units, it randomly selects several and empowers them with this power. It will effect between 10-12 mortal units (except siege, ships and titans), 2-3 heroes and 1-2 myth units. The effected units will be surrounded in glowing lights. When the unit dies, instead of disappearing, the unit will be reborn around 5 seconds later, with all hit points restored. The power lasts unit the unit is killed, and only resurrects it once. It is best cast on a mix of units for maximum effect.
Demonic Curse: This is a fourth age GP. It has a large area of effect. Targeting it on your enemy will turn many of them into werewolves. The werewolves are very powerful; you can receive up to 12. They belong to you, but you have no control over them. The power effects all units, except titans, siege, ships, trade units and certain myth units. It will turn between 1-2 villages, 4-6 mortal military, 1-2 heroes and 1-2 myth units (centaur, cyclops, minotaur, manticore, nemean lion, chirmera, anubite, sphinx, petsuchos, scorpion man, avenger, mummy, einherjar, troll, fenirs wolf, promethean, behemoth, satyr, lampade, heka gigante, dryad and tartarian spawn) into beasts. The werewolves stay unit killed.
WEREWOLF:
HACK DAMAGE: 22
CRUSH DAMAGE: 10
HACK AMOUR: 54%
PIERCE AMOUR: 34%
CRUSH AMOUR: 80%
HIT POINTS: 425
Rain of Fire: This is a fourth age GP. It has a large area of effect. It can be targeted anywhere on the map, provided there is line of sight. Targeting an area causes fire to rain down. The fire, like lighting storm is random. Over 20 seconds, many balls of fire will rain down. They are decent against units, good against ships, but best against buildings. When a unit or building is hit with a fireball, the effect lasts for 10 seconds. Over the 10 seconds units loose 5 hit points per second. Building loose 25 hit points per second, and ships loose 12 hit points per second. The more times a unit is hit the more damage is done, as the effect is accumulative. Any trees that are hit catch fire, and burn to the grown. The fire will spread to near by tress, but will not spread to more than 4 trees, per fireball.
UNITS:
Peasant: This is the unit that is the core of your empire. It builds and repairs buildings, as well as gathers resources.
COST: 50 Food
POPULATION: 1
HACK AMOUR: 25%
PIERCE AMOUR: 30%
CRUSH AMOUR: 99%
HIT POINTS: 65
Druid: This unit can build altars, which they worship at to receive favour. Only 5 may be created at a time. The have no attack, but are classified as heroes. They can also heal units.
COST: 150 Gold
POPULATION: 2
HACK AMOUR: 23%
PIERCE AMOUR: 15%
CRUSH AMOUR: 99%
HIT POINTS: 85
Horse Caravan: This large draught horse is built at the market and can be tasked to trade between a market and Town Centre to receive gold.
COST: 100 Food
POPULATION: 1
HACK AMOUR: 40%
PIERCE AMOUR: 40%
CRUSH AMOUR: 99%
HIT POINTS: 115
Man-at-Arms: This infantry unit is good against cavalry. He carries a sword, and after upgrading a shield.
COST: 60 Food, 20 Gold
POPULATION: 2
HACK DAMAGE: 5
HACK AMOUR: 35%
PIERCE AMOUR: 20%
CRUSH AMOUR: 99%
HIT POINTS: 110
Spearman: This infantry unit is good against cavalry. He attacks with a spear, and after upgrades receives a shield.
COST: 40 Food, 10 Wood
POPULATION: 2
HACK DAMAGE: 6
HACK AMOUR: 50%
PIERCE AMOUR: 30%
CRUSH AMOUR: 99%
HIT POINTS: 90
Archer: This ranged unit is good against infantry. He only ever carries a bow and arrow, but later gets a shield on his back.
COST: 75 Wood, 25 Gold
POPULATION: 2
PIERCE DAMAGE: 6
HACK AMOUR: 25%
PIERCE AMOUR: 35%
CRUSH DAMAGE: 99%
HIT POINTS: 78
Skirmisher: This unit is good against archers. He is ranged, throwing a spear and always carries a shield.
COST: 60 Wood, 30 Gold
POPULATION: 2
PIERCE DAMAGE: 4
HACK AMOUR: 20%
PIERCE AMOUR: 30%
CRUSH AMOUR: 99%
HIT POINTS: 78
Raider: This unit is good against buildings and poor against anything else. As the Celts do not have actual siege, this unit is their equivalent. It is a mounted soldier on a horse, carrying a touch. The touch is used to burn buildings. He has a shield on his back.
COST: 114 Wood, 25 Food, 50 Gold
POPULATION: 3
HACK DAMAGE: 8
CRUSH DAMAGE: 40
HACK AMOUR: 25%
PIERCE AMOUR: 75%
CRUSH AMOUR: 80%
HIT POINTS: 175
Cavalier: This mounted unit is good against archers. He carries a big sword.
COST: 40 Food, 50 Gold
POPULATION: 2
HACK DAMAGE: 7
HACK AMOUR: 25%
PIERCE AMOUR: 42%
CRUSH AMOUR: 99%
HIT POINTS: 105
Cavalry Archer: This mounted unit is good against infantry. This unit carries a bow and arrow.
COST: 40 Wood, 50 Gold
POPULATION: 2
PIERCE DAMAGE: 6
HACK AMOUR: 20%
PIERCE AMOUR: 40%
CRUSH AMOUR: 99%
HIT POINTS: 120
Woad Raider (Hero): This infantry unit is the only combat hero for the Celts. He carries a sword, and has a shield on his back. He has stripped pants, no shirt and long hair.
COST: 80 Food, 50 Gold
POPULATION: 3
HACK DAMAGE: 4
HACK AMOUR: 35%
PIERCE AMOUR: 20%
CRUSH AMOUR: 99%
HIT POINTS: 140
MYTH UNITS:
Mermaid/Merman: This 2nd age myth unit, which is received by all the Celtic major gods, is more a gather than an actual myth unit. It is half man half fish, with the upper body of a human, and the tail of a fish. It comes both in male and female form. This unit is used to gather fish and is built at the dock. It can carry half the amount of a fully upgraded fishing ship, but it is twice as fast at gathering and swims twice as fast. It can heal allied units, but it is very slow at it. It has a small attack, but like a villager would rather flee than fight, it has to be told to attack enemy units. A maximum of 7 may be built at any time.
COST: 75 Gold, 4 Favour
POPULATION: 1
HACK DAMAGE: 9
HACK AMOUR: 35%
PEIRCE AMOUR: 25%
CRUSH AMOUR 80%
HIT POINTS: 95
Firblog: This 2nd age myth unit is a unique bonus received by Brân. These small, tall, thin bluish green elf like men are spawned at the temple, upon advancing to the 2nd age. Only two are available at any one time, but they are free. When killed they respawn at the temple around 2 minutes later, similarly to Odin’s ravens. These units have no attack, but when tasked on a gold mine, they clear dirt and rock away, making peasants gather the gold 5% faster. Both can be task on the same gold mine (increasing the rate to 10%), or different ones.
HACK AMOUR: 25%
PIERCE AMOUR: 40%
CRUSH AMOUR: 99%
HIT POINTS: 125
Elf: This archer myth unit is available in the second age. He is similar in appearance and size to a dwarf. He uses a bow and arrow as his weapon. His special attack is a poisoned arrow that stuns the unit from a few seconds. Can be upgraded to Dark Elf, with more hit points and attack.
COST: 160 Wood, 8 Favour
POPULATION: 2
PIERCE DAMAGE: 10 (11)
HACK AMOUR: 40%
PIERCE AMOUR: 60%
CRUSH AMOUR: 80%
HIT POINTS: 150 (175)
Fire Serpent: This second age myth unit is a large man-eating, fire-breathing serpent. The fire it breathes, when attacking, does damage to all unit directly in front or to the sides of this unit. It special attack is an instant kill. The snake eats villages as well as certain infantry and archer units. It can eat the following units only: villager, dwarf, gather, labour, hoplite, hypaspist, toxotes, peltast, myrmidon, gastraphetes, mercenary, spearman, axeman, slinger, ulfsark, throwing axeman, huskarl, murmillo, arcus, destroyer and fanatic.
COST: 200 Gold, 18 Favour
POPULATION: 3
HACK DAMAGE: 12
CRUSH DAMAGE: 4
HACK AMOUR: 35%
PIERCE AMOUR: 30%
CRUSH AMOUR: 80%
HIT POINTS: 290
Goblin: This third age myth unit is similar to the troll, only taller, bigger and stronger. He attacks with swipes of his long claws on each hand. As many goblins had magic, goblins are able to use magic to transport them around to anywhere on the map, provided the player has line of site. This can be done once the goblin is selected. There is a unique icon on the unit’s information bar, and once clicked on the player simply goes to the area where they wish to transport their goblins, and they will appear in a cloud of smoke and light. To balance this, this special ability takes 45 seconds to recharge. It can be upgraded to Ironwood Goblin, with more attack and amour.
COST: 175 Food, 22 Favour
POPULATION: 4
HACK DAMAGE: 15 (17)
HACK AMOUR: 35% (45%)
PIERCE AMOUR: 60% (65%)
CRUSH AMOUR: 80%
HIT POINTS: 580
Black Bird: This third age myth unit is a giant flying black bird. It carries rocks in it’s stomach, which it has swallowed, and when attacking regurgitates them to drop on enemy units and buildings. It has no range, and must be directly above the target. Its special attack is three rocks dropped at once, which do damage to multiple units, or more damage to a building.
COST: 170 Wood, 50 Food, 25 Favour
POPULATION: 4
HACK DAMAGE: 12
CRUSH DAMAGE: 9
HACK AMOUR: 35%
PIERCE AMOUR: 30%
CRUSH AMOUR: 80%
HIT POINTS: 420
Wolfman: This third age myth unit has the head of a wolf on the body of a man. He carries an axe in one hand. His special attack is a bite from his sharp teeth, which does 25 hack damage.
COST: 200 Food, 15 Favour
POPULATION: 4
HACK DAMAGE: 18
CRUSH DAMAGE: 5
HACK AMOUR: 60%
PIERCE AMOUR: 50%
CRUSH AMOUR: 80%
HIT POINTS: 450
Forest Man: This fourth age myth unit is a huge ape-man. He has a shaggy coat of fur, and is the same size as a Cyclopes. His special attack is a howl that disheartens enemy units in the area, lowering their attack by 25% over 5 seconds. The affect last for around 4 seconds. He has a normal attack.
COST: 400 Food, 28 Favour
POPULATION: 5
HACK DAMAGE: 35
CRUSH DAMAGE: 12
HACK AMOUR: 55%
PIERCE AMOUR: 35%
CRUSH AMOUR: 80%
HIT POINTS: 800
Sting Ray: This fourth age myth unit is a huge sting ray. He fires spikes from his tail. He special attack is a volley of spikes.
COST: 250 Wood, 100 Food, 15 Favour
POPULATION: 5
PIERCE DAMAGE: 35
HACK AMOUR: 25%
PIERCE AMOUR: 50%
CRUSH AMOUR: 80%
HIT POINTS: 850
Thunder Bull: This fourth age myth unit is a large black bull with golden horns. His special attack is both hack and pierce damage. The bull glows blue, with static electricity, and goes into a berserk rage, bucking and kicking or head-butting units. This bucking attack does 25 hack damage to all units hit, except siege, trade units, titans and heroes. With each buck, four in total, a lighting bolt is released in a perpendicular angle to the bull’s body. If the bolt hits a unit it will arch through up to three units in the area. Each unit gets 40-pierce damage done. All damage done is effected by individual units amour.
COST: 350 Gold, 25 Favour
POPULATION: 5
HACK DAMAGE: 20
CRUSH DAMGE: 30
HACK AMOUR: 30%
PIERCE AMOUR: 45%
CRUSH AMOUR: 80%
HIT POINTS: 650
Banshee: This fourth age myth unit is a ghostly woman in a black cloak. She bears a sword, which she carries with both hands. Her special attack, a ghostly wail that can be invoked at a small range, causes a targeted unit to instantly die. Her sword provides her with a strong normal attack. Can be upgraded to Wailing Banshee, with makes her special attack take 25% less time to recharge, and more resistant to pierce damage.
COST: 250 Gold, 27 Favour
POPULATION: 5
HACK DAMAGE: 22
HACK AMOUR: 45%
PIERCE AMOUR: 50% (57%)
CRUSH AMOUR: 80%
HIT POINTS: 350
Gryphon: This fourth age myth unit is a giant lion with the head and wings of a falcon. It has a massive attack and hit points. The gryphon can fly, allowing it to cross many barriers, such as water and walls. It has an unlimited flight time, but when flying it cannot attack. It must land to do this. The gryphon can be made to fly or land using a unique icon that appears on the gryphon’s bar, when selected. Landing and taking off takes a short amount of time, and during this time it is at it’s most vulnerable. The gryphon is able to walk on land, but is much slower compared to when it flies.
COST: 100 Wood, 300 Gold, 30 Favour
POPULATION: 5
HACK DAMAGE: 32
CRUSH DAMAGE: 5
HACK AMOUR: 44%
PIERCE AMOUR: 44%
CRUSH AMOUR 80%
HIT POINTS: 850