Gwaihir

Flash, flying (You may cast this spell any time you
could cast an instant, this creature can't be blocked
except by creatures with flying or reach.)
Other Birds you control get +1/+1.
Raid — When Gwaihir enters the battlefield, if
you attacked this turn, choose one —
• Create a 2/3 white and blue Bird creature
token with flying.
• Return target permanent you control to its
owner's hand.