When a Spell/Trap Card, or monster effect, is activated while you control an "Orcust" Link Monster: Negate the activation, and if you do, banish that card.
You can banish this card from your GY; add to your hand 1 of your DARK Machine monsters that is banished or in your Deck.
You cannot Special Summon monsters the turn you activate this effect, except DARK Machine monsters.
You can only use 1 "Orcust Crescendo" effect per turn, and only once that turn.