Incas are the “Swiss army knife” of meso civs. Their idea is that they are less focused toward something (infantry for Aztecs, Archers for Mayans) but can do both and also have good Siege and acceptable Monks. They are the Malians of meso. Any buffs, if needed, should go into this direction. So absolutely no to cheaper Eagles, Eagles are already oppressive enough and Incas have an eco bonus (cheaper houses).
I would buff if anything the Slinger, maybe give them innate Ballistics, or buff their range. Biggest problem with Slingers is that it’s hard to tech into them because you need Archery Range (175w), Food gathering (Eagle flood eco normally has like 8-10 farmers so it’s hard to justify Slingers transition), 1-2 range upgrades (Fletching/Bodkin etc.) and ideally you get Ballistics too. Often to counter Longswords or something that are countering your Eagles. Maybe it’s intended that it’s this hard to tech into them but I wish it was a bit easier, would fit the Incas “versatility” theme.
