Red Dragon Archfiend/Assault Mode (UTR) [CRMS-EN004] Ultimate Rare Hidden Arsenal 3 you must select it as

you must select it as an attack target

Set: Sun & Moon: Guardians Rising Type: Metal Rarity: Ultra Rare Retreat cost: Colorless

Set: Crossed Souls Card type: Synchro/Effect Monster Rarity: Ghost Rare Attack: 2500 Defense: 2000 1 Tuner + 1 or more non-Tuner monsters

increase your Life Points by the ATK of the destroyed monster

When the selected monster is destroyed

Red Dragon Archfiend/Assault Mode (UTR) [CRMS-EN004] Ultimate Rare Hidden Arsenal 3 you must select it asSet: Crimson Crisis Card type: Effect Monster Rarity: Ultimate Rare Attack: 3500 Defense: 2500 This card cannot be Normal Summoned or Set. This card cannot be Special Summoned except with Assault Mode Activate. If this card attacks, destroy all other monsters after damage calculation. When this card on the field is destroyed, Special Summon 1 Red Dragon Archfiend from your Graveyard.