You can only play this card if your Undead Warlord is “Mortis, The Grimm Shadowhand”. Static: Negate all (Perish) Keyword Abilities of Non-Undead Warriors. Static: All “Grimm Grimoire” cards cannot be negated. Static: At the end of each of the opposing player’s turns, you must send the top 3 cards of your deck to the discard pile. If you cannot send the top 3 to the discard pile, you must sacrifice this card and deal 10 damage to your Warlord.