Discard 1 "Metaphys" card; draw 1 card, then you can banish 1 "Metaphys" monster from your Deck.
If this card is banished: You can add 1 "Metaphys" card from your Deck to your hand, except "Metaphys Ascension".
You can only use 1 "Metaphys Ascension" effect per turn, and only once that turn.