way too OP still. it doesnt have to be a swiss army knife mixed with a nuclear bomb for it to be a good card.
also, as soon as you think "hey, maybe it can instantly kill a creature..." stop and start over, there will be no instant kill cards unless they are involved in a combo (freeze/shockwave). not only that, but destroys all pillars... spells(?) and permanents? cmon man. im just going to ignore destroying the hand part and pretend i didnt see it.
i know you are trying to come up with a trump card, but think about it this way- everyone hates donald trump.