I use Aothar in magic keep to place those posions and steal buffs, but for some reason most of the times he goes A1 even if both his A2 and A3 are not on cd. Is his AI stupid or this is a bug?

Also I use Trunda to nuke waves, and her A2 is a great asset for that... if she wouldn't use it every time on the lowest HP enemy, who would die from the first strike of her A1... She could actually nuke half of the HP of the whole wave with that ability, or sometimes delete them... if she would use it on the correct enemy