I understand that friendly fire is more realistic, but the game is too damn small to have to deal with worrying about friendly fire. When there is a battle with lots of units, there is NO WAY to distinguish the good guys from the enemy. And it also means you either can use spells or else you will kill your allies. The game either needs to make the allies more easily distinguishable from the enemies, like with larger, vastly different color health bars, or maybe on of the upgrades could be a change to not hit allies. Especially with magic. It IS magic after all, so why can't it magically protect the allies and only target the enemies?