It seems that Unique Unit advisor cards aren't used all that much especially when you reach max level. Especially considering that with legendary and epic gears you can make your standard tech tree units comparable if not outright better than a lot of unique units even at epic tier. A potential solution may be to allow for unique units to use the gear stat lines boost of another unit in your civ. I understand that this is all hypothetical and does not put into consideration if their are any technical limitations that would even prevent that from happening so this is all just a nice hypothetical I.e. Celt Headhunters using the gear line of the Celt Horseman to boost their base stats. Greek Phalanx using the Greek Spearmen gear line to boost their stats. I understand that from the get go that this can present a balance issue. If an Epic phalanx unit was to use my gear stat line on spearmen with all armory attack upgrades its melee DPS would be approximately 80.8 which would be pretty obscene for a cheap unit that can be trained in 5 seconds compared to my spearmen line which with all upgrades have 51 dps. So to balance it out what could be done is to reduce all unique unit stats to their common base line(white) and have each tier of advisor determine what percent to limit the final calculation of health, armor and attack dmg for unique units.Modifiers that effect training time and unit cost should not be limited however. If some gear increases or decreases costs that should not be modified. Common: Modifies final attack and health calc with gear stats at 50% Uncommon: at 60% Rare: at 70% Epic: at 75% So with these numbers applied a phalanx with base DPS of 21 that uses my current Spearmen stat line would have the following attack stats at these different tiers(this is with all attack armory upgrades): Common: 39.44 attack Uncommon: 47.33 attack Rare: 55 attack Epic: 59.17 attack For context: My spearmen gear that affects attack damage are the following(please don't judge harshly I don't play Greeks that much): Delian Preceptor spear: +61.6% damage boost Imhotep's gauntlets: +7.5% damage With all upgrades my spearmens attack is approx 51 dps. So with the limiter but also with gear stats boost unique units may potentially be comparable to the other normal tech tree units which may hopefully make them a more viable choice for max level players. It also potentially opens up another avenue of customization for players who just want to tinker with another unit all together. Or alternatively you could just nerf all the stat lines of unique units across the tiers of advisors.