Blue Sky

When Blue Sky enters, search your library for
a legendary artifact named Sword of the Crystal Sphere, put it into your hand, then shuffle your library. Other birds you control
get +1/+1 as long as a card named Sword of the Crystal Sphere is equipped to this creature.
Whenever you cast your first instant or sorcery each turn, you may create a legendary 0/1 white bird spirit token with flying named Little Cloud.
"Ey, it's me, Blue Sky."