Mjolnir

When Mjolnir enters the battlefield, if it was
cast, you may attach it to target God creature
you control named Thor, God of Thunder.
Equipped creature gets +3/+3 and gains "When
this creature deals damage to a creature an
opponent controls, tap that creature. It does not
untap during its controller's next untap step."
Equip God {1}
Equip {10}