Dancing Scimitar [Arabian Nights] San Diego Comic-Con 2014 where X is 2 plus

where X is 2 plus the sacrificed creature's mana value

Flashback—Sacrifice a creature

Set: From the Vault: Angels Type: Legendary Creature — Angel Rarity: Mythic Cost: {6}{W}{W}{W} Flying

it enters the battlefield tapped

Set: Beta Edition Type: Artifact Rarity: Uncommon Cost: {1} You have no maximum hand size

Dancing Scimitar [Arabian Nights] San Diego Comic-Con 2014 where X is 2 plusSet: Arabian Nights Type: Artifact Creature Spirit Rarity: Rare Cost: {4} Flying (This creature can't be blocked except by creatures with flying or reach.) Bobbing merrily from opponent to opponent, the scimitar began adding playful little flourishes to its strokes; it even turned a couple of somersaults.