White Mirror — Ruling

Effetto 0

Special Summoning the targeted monster and adding a monster with the same name from your Deck to your hand do not happen simultaneously.
This card targets 1 Level 4 or lower Fish monster in your Graveyard.
After Special Summoning the targeted monster, choose whether or not to apply the part of the effect that adds a monster with the same name from your Deck to your hand. (If you do not add a monster to your hand, this effect finishes resolving by Special Summoning the targeted monster.)