Tholestra, High Trickmage

+1: Place a -1/-1 counter on target creature: place a +1/+1 counter on target creature you control.
-3: Until end of turn, all of your spells have flash and you can spend mana of any color to cast them. Discard your hand at the end of your turn.
-5: Gain a Trick counter with "Sacrifice a trick counter: return target spell to its owner's hand, then copy it. Choose a new target for the copy".