Eerie Effigy

When Eerie Effigy enters the battlefield and at
the beginning of your upkeep, choose a creature
to which it isn't attached or which it doesn't
enchant. If you can't, sacrifice Eerie Effigy.
Equipped or enchanted creature is a copy of the
chosen creature. (It has base power and toughness
equal to base power and toughness of the chosen
creature. It has all abilities of the chosen creature.)
Equip {2}{w}{w} Aura swap {2}{w}{w}