Crystal Castle

At the beginning of your upkeep, or end step,
transform Crystal Castle if you control an
Urskek.
{2}, {t}: Add {b}{b}{b}{b} You lose 2 life.
{t}: Crystal Castle doesn't untap during your
next untap step. Choose one —
• Create two 5/5 black Garthim creature
tokens with vigilance.
• Search your library for a card named The Dark
Crystal, put it in your hand, then shuffle.