When playing an Enchantress, especially in a party with an Armymancer, you want to be able to see who you need to cast the Enchant spell on (again).
This is most obvious with nonmagical skeletons, but applies to much more.
I imagine we’ll see weapons turn red for enchanted players and maybe mercenaries, but I’d like to be sure it is clearly visible there and also on Skeletons, Golems, Druid Wolves/Bear and, most difficult (due to diversity), Revives…