Crux, the Solar Wing

Creatures you control have flying and lifelink.
Whenever a creature enters the battlefield, Crux,
the Solar Wing gets +1/+1 and deals 2 damage to
target creature. Untap Crux, the Solar Wing.
{b}{u}{u}{t}: Destroy target creature. Create two
1/1 blue bird creature tokens with flying.
{u}{b}{r}{r}{r}: Put Crux, the Solar Wing onto the battlefield from the graveyard or exile. Create a
1/1 blue bird creature token with flying. Destroy target creature.