A scary pebble for the… Altergeist Mirror Match???
DANE-JP068 Altergeist Haunted Rock
Continuous Trap Card
If this card was Set by the effect of an “Altergeist” card, you can activate it the turn it was Set.
You can use each effect among the (1)st and (2)nd with this card’s name only once per turn.
(1) When this card resolves, send 1 “Altergeist” monster from your hand to the GY.
(2) When your opponent activates a Trap Card: You can send 1 “Altergeist” monster from your hand to the GY; negate its effect, and if you do, destroy it.