Gravekeeper's Assailant is a Common Effect Monster card from Yu-Gi-Oh! (Structure Deck: Marik (TCG), SDMA). Current market price: $0.11.
Common
Structure Deck: Marik (TCG) (SDMA)
Card Text
When this card declares an attack while "Necrovalley" is on the field: You can target 1 face-up monster your opponent controls; change that target's battle position.
