Swimmer in Nightmares⁣ - Theros Beyond Death: Extras⁣ (Uncommon)⁣ [275]

Swimmer in Nightmares is a 1/4 Nightmare Merfolk that gains +3/+0 if a single graveyard contains ten or more cards. It cannot be blocked while you control an Ashiok planeswalker. This card is suitable for Commander, Modern, and casual play, focusing on graveyard strategies.