You can only use the 1st and 2nd effect of this card’s name each once per turn.
(1) If you control 2 or more “Diabell” monsters: Send 1 monster you control to the GY; destroy all face-up cards your opponent controls.
(2) If this card is sent to the GY, or banished, from the hand or Deck: You can add 1 “Diabell” Spell/Trap from your Deck to your hand, except “Curse of Diabell”.