Sky Watcher

Whenever Sky Watcher attacks, create a 2/1 Red bird token with flying that is tapped and attacking. Exile it at the next end step.
Whenever Sky Watcher blocks, create a 0/4 Blue bird token with defender and flying that is tapped and blocking. Exile it at the next end step.
Whenever you gain life, create a 1/1 white Bird token with lifelink and flying.