Doomkaiser Dragon/Assault Mode [CRMS-EN019] Ultimate Rare World Championship 2011 Card Pack (Quick Effect): You can discard

(Quick Effect): You can discard 1 Spell

many of which can be used with either Dead of Winter base set

Master of Pranks deals combat damage to a player

if you have no cards in your Spell & Trap Card Zone: You can detach 1 Xyz Material from this card

Doomkaiser Dragon/Assault Mode [CRMS-EN019] Ultimate Rare World Championship 2011 Card Pack (Quick Effect): You can discardSet: Crimson Crisis Card type: Effect Monster Rarity: Ultimate Rare Attack: 2900 Defense: 2000 This card cannot be Normal Summoned or Set. This card cannot be Special Summoned except with "Assault Mode Activate". When this card is Special Summoned, Special Summon any number of Zombie Type monsters from either player's Graveyard(s) to your side of the field. Those monsters effects are negated, and they are destroyed during the End Phase this turn. When