Add 1 “Aeralyn Script” Spell from your Deck to your hand. Then, if you control a WIND Link Monster, you can Special Summon 1 Level 4 or lower WIND Winged Beast from your hand. If this card is used as Link Material from your field or GY: You can draw 1 card. You can only use each effect of “Skywritten Invocation” once per turn.