Amorphage Infection

All "Amorphage" monsters on the field gain 100 ATK and DEF for each "Amorphage" card on the field. If a monster(s) in your hand or you control is Tributed, or destroyed by battle or card effect: You can add 1 "Amorphage" card from your Deck to your hand. You can only use this effect of "Amorphage Infection" once per turn.