Types:
Creature — Nightmare Merfolk
Card Text:
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.
Flavor Text:
Ashioks Diener ergründen die Tiefen der Ozeane und der Psyche.