Copying a spell is a great way to counter a counterspell, or have a second removal spell, or just copy a card draw engine
Disappear At the beginning of your end step, if a permanent left the battlefield under your control this turn, put three +1/+1 counters on up to one other target artifact or creature
Gisela, Blade of Goldnight ( Avacyn Restored) Another angel from Avacyn Restored what an absolute banger of a set
Mid to Late Game Once Gardevoir has evolved and Shadow is active, Mewtwo EX can start using Side Drive without worrying about the Energy discard penalty
Appropriate, given how efficiently she can help your opponents transition from living to dead
It's so great, in fact, that the fate of this precon is that stores inevitably marked up its price when they could