Dark Depths - From the Vault: Lore - 4

Legendary Snow Land

Dark Depths enters with ten ice counters on it.
{3}: Remove an ice counter from Dark Depths.
When Dark Depths has no ice counters on it, sacrifice it. If you do, create Marit Lage, a legendary 20/20 black Avatar creature token with flying and indestructible.

Mythic · From the Vault: Lore · #4 (V16)

Illustrated by Stephan Martiniere