Galactus the Grappler

Trample
When Galactus the Grappler deals damage to a creature, tap that creature. It doesn't untap
during its controller's next untap step.
At the beginning of the end step, if a
planeswalker or another legendary creature
you control was destroyed this turn, exile
Galactus the Grappler and return him to the
battlefield transformed under his owner's
control.