Doomcaliber Knight [SJCS-EN006] Ultra Rare Duelist Revolution Set: Oath of the Gatewatch

Set: Oath of the Gatewatch Promos Type: Land Mythic Cost: Mirrorpool enters the battlefield tapped

instead choose a card you own from outside the game and put it into your hand

(Quick Effect): You can discard 1 Spell

When you attack with three or more creatures

Doomcaliber Knight [SJCS-EN006] Ultra Rare Duelist Revolution Set: Oath of the GatewatchSet: Shonen Jump Championship Series Prize Cards Card type: Effect Monster Rarity: Ultra Rare Attack: 1900 Defense: 1800 This card cannot be Special Summoned. When the effect of an Effect Monster is activated, you must Tribute this face up card on your side of the field to negate the activation and effect of that card and destroy it.