Conspiracy: Take the Crown

Cast this spell only before the combat damage step. Target creature gains trample and gets +X/+0 until end of turn, where X is its power. At the beginning of the next end step, destroy that creature if it attacked this turn.

Flying This creature gets +3/+3 as long as an opponent has no cards in hand. Whenever this creature deals combat damage to a player, that player discards a card.