Add 1 'Gem-Knight' card from your Deck to your hand, then you can Fusion Summon 1 'Gem-Knight' Fusion Monster from your Extra Deck, banishing monsters from your hand or your side of the field as Fusion Materials. You can only activate 1 'Absorb Fusion' per turn. You cannot Special Summon any monsters the turn you activate this card, except 'Gem-Knight' monsters.