Genex Ally Birdman (SDSE-EN020) - Structure Deck: Synchron Extreme 1st Edition

You can return 1 face-up monster you control to the hand to Special Summon this card from your hand, and this card gains 500 ATK if it was a WIND monster you returned. If this card is Special Summoned this way, remove it from play when it is removed from the field.