Mystic Swordsman LV4 [DR3-EN012] Ultra Rare Anthologies if that spell's mana cost

if that spell's mana cost or that ability's activation cost contains {X}

Set: Unlimited Edition Type: Creature — Nightmare Horse Rarity: Rare Cost: {5}{B} Flying (This creature can't be blocked except by creatures with flying or reach

Pay 1 life: Add {R} or {W}

Set: Judge Gift Cards 2003 Type: Sorcery Rarity: Rare Cost: {3}{B}{B} Each player exiles all creature cards from their graveyard

Mystic Swordsman LV4 [DR3-EN012] Ultra Rare Anthologies if that spell's mana costSet: Dark Revelation Volume 3 Card type: Effect Monster Rarity: Ultra Rare Attack: 1900 Defense: 1600 If you Normal Summon this card, you must place it in face down Defense Position. If this card attacks a face down Defense Position monster, destroy the monster immediately with this card's effect without flipping it face up or applying damage calculation. During the End Phase of a turn that this card destroyed a monster by battle, by sending this card