When using the Thousand Needles, it occasionally targets my creatures with damaging spells, when my creature, the wielder, cast them on the enemy.
This is particularly damaging, as it the relic casting the spell seems to circumvent defenses or something, as it seems to always lead to a party wipe.
I think this might actually be an interaction between the relic, the harpy that causes creatures to target themselves, and the imp that make single attacks spells target the whole side…