Mjolnir

When Mjolnir enters the battlefield
equip to target creature
Mjolnir enters the battlefield with 3 energy
counters When Thor God of Thunder attacks
Mjolnir gets 1 energy counter
-{e}{w}{w}{w} attached creature gains flying
-{e}{w}{w}{w}{w} this creature has vigilance
-{e}{e}{5} attached creature has first strike
{dash}{e}{e}{7} attached creature has indestructible
{dash}{e}{e}{7} attached creature has trample