梦魇潜探客 (Swimmer in Nightmares) (zhs)
Creature - Nightmare Merfolk
| Power/Toughness:
1 / 4
(CMC 3)
Swimmer in Nightmares gets +3/+0 as long as there are ten or more cards in a single graveyard.
Swimmer in Nightmares can't be blocked as long as you control an Ashiok planeswalker.