Celestial Enforcer

{1}{W}, {T}: Tap target creature. Activate only if you control a creature with flying.

Falconer Adept

Whenever Falconer Adept attacks, create a 1/1 white Bird creature token with flying that's tapped and attacking.

Defender (This creature can't attack.)
Attacking creatures you control get +1/+0.

Flying
When Gale Swooper enters, target creature gains flying until end of turn.

Thriving Heath enters tapped. As it enters, choose a color other than white.
{T}: Add {W} or one mana of the chosen color.

Enchant creature
Enchanted creature has defender and loses flying.

Flying
Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Up to two target creatures each get +2/+2 until end of turn.

Flying
When Archon of Justice dies, exile target permanent.

Flying
Whenever Archon of Redemption or another creature you control with flying enters, you may gain life equal to that creature's power.

Target creature gets +1/+7 until end of turn.

Destroy target tapped creature. You gain 1 life for each creature you control with flying.