Millstone [Seventh Edition] Magic 2012 during damage calculation in either

during damage calculation in either player's turn: You can detach 1 Xyz Material from this card

you can remove from play 1 "Nordic Alfar" Tuner monster from your Graveyard to Special Summon this card from the Graveyard

Once per turn: You can declare 3 card names

Set: Force of the Breaker Card type: Normal Trap Rarity: Super Rare Attack: 0 Defense: 0 Activate only when your opponent declares an attack while they control 3 or more Attack Position monsters

Millstone [Seventh Edition] Magic 2012 during damage calculation in eitherSet: Seventh Edition Type: Artifact Rarity: Rare Cost: {2} {2}, {T}: Target player mills two cards. More than one mage has been driven insane by the sound of the millstone relentlessly grinding away.