Damping Matrix [Mirrodin] XY29 Set: Worldwake Type: Creature —

Set: Worldwake Type: Creature — Human Druid Ally Rarity: Rare Cost: {1}{G} {T}: Add X mana of any one color

if all of the Synchro Monsters that were used for the Synchro Summon of that monster are in your Graveyard

Return Ovinomancer to its owner's hand: Destroy target creature

During your Standby Phase after this card's activation

Set: Duelist Pack 8: Yusei Fudo Card type: Equip Spell Rarity: Common Attack: 0 Defense: 0 When the equipped monster destroys a monster by battle and sends it to the Graveyard

Damping Matrix [Mirrodin] XY29 Set: Worldwake Type: Creature —Set: Mirrodin Type: Artifact Rarity: Rare Cost: {3} Activated abilities of artifacts and creatures can't be activated unless they're mana abilities. The priests tried cursing it. The mages tried dispelling it. In the end, they all obeyed it.