You can only use the 1st and 2nd effect of this card’s name each once per turn.
(1) If this card is Normal or Special Summoned: You can discard 1 “Memento” card, then target 1 Spell/Trap your opponent controls; destroy it.
(2) During your Main Phase: You can destroy 1 “Memento” monster you control, and if you do, Special Summon 1 Level 3 or lower “Memento” monster from your Deck.