Set:	Modern Horizons 3 Commander
Type:	Creature Shapeshifter
Rarity:	Rare
Cost:	{1}{U}

Whenever Aurora Shifter deals combat damage to a player, you get that many {E}.
At the beginning of combat on your turn, you may pay {E}{E}. When you do, Aurora Shifter becomes a copy of another target creature you control, except it has this ability and "Whenever this creature deals combat damage to a player, you get that many {E}."