Monastary and Monks are well made til Imperial Age where they are counter very easily, with all the improvements in this age, they are useless literally with faith and heresy.
I played often in Multiplayers and i never saw someone used Monks in Imperial Age, they are used only for heals but after “Plant healer” they are no longer needed with castles.
Ideas :
This is why it will be interesting to make Orthodoxie who is only for one civilisation available for a big part of the civilisations (not everyone) it will be the most expensive cost in monastary.
Orthodoxie will be free in the Imperial Age for the Slaves instead of it’s the only one who have this.
Cost : 1000 Foods 1300 Golds.
Pilgrimage : Cost : 400 Foods 200 Golds
Monks are 15% more faster
Why this ?
Monks are destroyed quite easily in Imperial Age, by all the units, and especially cavalry this is why make them quicker will make them just more interesting, not a waste, to make them useful instead of just a unit who have no chance when you use them later , they will be more slow than the king but they will be faster so more viable.
Spanish won’t have this features because of their unique unit.
Master Healer Cost : 400 Foods 600 Golds
Monks heal faster and give more HP
Why this ? Here now, Monks heal very slow even in group, castle heals more fast than monks, they are quite obsolte after this improvement in monastery this is why a feature like
this, will be intersting in Imperial Age for make Monks more useful.
Word of God Cost : 500 Foods 500 Golds
Monks slow down enemy units.
How it will works and why ? In Imperial Age even with an army of Monks you are screwed, because of their low HP, low speed, and the fact that they lose their main use in Imperial Age with all the counters, they got totally destroyed, this is why a feature who allow them to slow down unit when they convert will make them more useful, like enemy are listening to them, and hesitate to kill them, it make them more realistic in a way, where enemy who change their mind like, okay dude.
The unit will be more slow, but will be still able to attack, when the monk is killed automatically, this malus stop.
Missionary could take relics too, because it’s a huge disadvantages in some close games, where your opponent has all the relics.
Conclusion : Monks in Imperial Age are useless because of the counters add those features will make them better, they will be expensive, but interesting because monks will be viable and useful, by this diversity more strategy will be add with them instead of only military units in Imperial age.