Lily the Happy Harbinger

Fairy Immortality: If this creature would die
or be exiled, it enters the command zone instead. It
costs {g} more to cast for each time it has entered
the command zone
Flying
When Lily the Harbinger enters the battlefield,
for each {g} spent to cast it, you may search your library for a Fairy card, reveal it, shuffle
and place those cards on top in any order.
Haru desu yo!