Call of the Grave [WP11-EN018] Super Rare Two-Headed Giant Tournament You can only use this

You can only use this effect of “Ride of the Valkyries” once per turn

target player cannot play instants

Set: Arena League 1999 Type: Creature — Imp Rarity: Rare Cost: {B}{B} Flying When you cast a creature spell

Set: Aquapolis Type: Fighting Rarity: Uncommon Retreat cost: Colorless

Set: Conspiracy Type: Artifact Rarity: Rare Cost: {2} Sacrifice a creature: Target player puts a number of cards equal to the sacrificed creature's power from the top of his or her library into his or her graveyard

Call of the Grave [WP11-EN018] Super Rare Two-Headed Giant Tournament You can only use thisSet: World Championship 2011 Card Pack Card type: Normal Trap Card Rarity: Super Rare When your opponent activates "Monster Reborn": Negate its effect.