You can only activate this card’s effect if you
have 3 or more “Grimm’ Undead Warriors in
your discard pile.

Once per turn: If an opponent targets your Undead
Warlord with a direct attack, you can target 1 “Grimm” Undead
Warrior in your discard pile with the attack of 3 or less; revive
the targeted Warrior to your side of the field.

You can only control 1 face-up “Revisit The Grimm”.