Everyone wants to shoot stuff for Lightning Bolts
Leyline Dowser This is a REALLY funky one to try and evaluate singular in purpose, niche in application, and yet still not playing strictly within the obvious lines of classic spellslinger support cards
As an archetype, Faeries gives you a wide range of spells, mechanics, and design concepts to work with, making it a very versatile archetype depending on the commander
Street Wraith Cycling for two life is basically going through your deck and putting Street Wraith in your graveyard for reanimation shenanigans
Leonardo da Vinci Leonardo da Vinci churns out Thopter token copies of discarded artifacts to great effect
That said, even though its getting a bunch of new support in Final Fantasy, Bird Typal is hardly a powerhouse archetype