Mr. Freeze

When no player is Earth, reveal Mr. Freeze.
When you do, all Villains win the game.
You may flip this card face up during your turn.
When you do, create an artifact called "Ice Gun"
with the following abilities;
{1}{t}, Tap target creature. It doesn't untap
during its controllers next untap step.
{2}{t}, Tap target permanent. It doesn't untap
during its controllers next untap step.