Dimensional Prison [NKRT-EN034] Platinum Rare 216 by using this face-up card

by using this face-up card you control as the Xyz Material

Set: Magic Player Rewards 2001 Type: Token Creature — Saproling Rarity: Common The nauseating wriggling of a saproling is exceeded only by the nauseating wriggling of its prey

{1}: Mishra's Factory becomes a 2/2 Assembly-Worker artifact creature until end of turn

When that mana is spent to cast an instant or sorcery spell

Dimensional Prison [NKRT-EN034] Platinum Rare 216 by using this face-up cardSet: Noble Knights of the Round Table Box Set Card type: Normal Trap Rarity: Platinum Rare Attack: 0 Defense: 0 When an opponent's monster declares an attack: Target that attacking monster; banish that target.