"Do you like it, Sister? Its dreadful visage was inspired by your own."

Geralf, Visionary Stitcher

Zombies you control have flying.
{U}, {T}, Sacrifice another nontoken creature: Create an X/X blue Zombie creature token, where X is the sacrificed creature's toughness.

Innistrad: Double Feature

Innistrad: Crimson Vow Promos

Innistrad: Crimson Vow

If another permanent enters the battlefield under your control as a copy of Geralf, Visionary Stitcher, the legend rule requires you to put one of them in a graveyard before you can take any actions. You can't sacrifice the copy to pay the cost of the original Geralf's activated ability.