Colossal Fighter/Assault Mode

“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, you can send up to 2 Warrior-Type monsters from your Deck to the Graveyard. All monsters your opponent controls lose 100 ATK for every Warrior-Type monster in your Graveyard. When this card on the field is destroyed, you can Special Summon 1 "Colossal Fighter" from your Graveyard.”