Cave-In [Mercadian Masques] Modern Masters 2017 That monster`s original ATK is

That monster`s original ATK is reduced to half the end phase

when it declares an attack: You can change the battle positions of as many monsters your opponent controls as possible

add {B}{B}

Set: XY: Phantom Forces Type: Psychic Rarity: Promo Retreat cost: Colorless

Set: Generation Force Card type: Spell Card Rarity: Ultra Rare If you control no face-up monsters: Pay half of your Life Points

Cave-In [Mercadian Masques] Modern Masters 2017 That monster`s original ATK isSet: Mercadian Masques Type: Sorcery Rarity: Rare Cost: {3}{R}{R} You may exile a red card from your hand rather than pay this spell's mana cost. Cave In deals 2 damage to each creature and each player. One fleet was gone; others were poised.