Any other ideas for to use the Upgrade feature? I was thinking of giving every champion infantry unit a Banner Carrier upgrade option that boosts the performance of units around them (does not stack, so sprinkle them around). They'd have no attack, but very good armor or health.
Definitely an Immortals Spear <-> Bow option. Any others? I thought about a Hastatus Sword <-> Pilum toggle, but I think the Pilum should be use differently in the game (throw pilum more like a "first attack" option if the enemy is right distance, then charge with the sword). But I might include in Alpha 21 for fun anyway. Some of these will be made obsolete later with proper secondary attacks implement, but that's okay. And in case I don't like the way secondary atack implement then I can always use the upgrade feature. This is one of the best feature impemented in a long time.