Yesterday we encountered a godlike barbarian with 4 clerics behind him. I thought to do Major Image on the enemy Boss to seem like he takes much less damage and to order them to come melee. It's worth mentioning that the boss's rage was upon our barbarian who was in melee range, so he had no incentive to move.
Is viable to do Major Image on a creature?
If it is, doesn't it make sense to be confused if I give them other orders until a successful investigation?