Faerie Harbinger

Flash
Flying
When Faerie Harbinger enters, you may search your library for a Faerie card, reveal it, then shuffle and put that card on top.

Faerie Aerie

Whenever you crank Faerie Aerie, create two 1/1 blue Faerie Spy creature tokens with flying, haste, and "Whenever this creature deals combat damage to a player, draw a card." Exile them at the beginning of the next end step.

Faerie Invaders

Flash (You may cast this spell any time you could cast an instant.)
Flying

Faerie Swarm

Flying
Faerie Swarm's power and toughness are each equal to the number of blue permanents you control.