Siren's Call [Collectors' Edition] XY164 Whenever Warren Instigator deals damage

Whenever Warren Instigator deals damage to an opponent

Tsuchinoko

When this card is sent from the hand to the Graveyard: Target 1 Flip Effect Monster in your Graveyard

the demons gazed upon grace in its purest form

then sacrifices all artifacts they control

Siren's Call [Collectors' Edition] XY164 Whenever Warren Instigator deals damageSet: Collectors' Edition Type: Instant Rarity: Uncommon Cost: {U} Cast this spell only during an opponent's turn, before attackers are declared. Creatures the active player controls attack this turn if able. At the beginning of the next end step, destroy all non Wall creatures that player controls that didn't attack this turn. Ignore this effect for each creature the player didn't control continuously since the beginning of the turn.