Silverstrike

Destroy target attacking creature. You gain 3 life.

Gideon's Reproach

Gideon's Reproach deals 4 damage to target attacking or blocking creature.

Blighted Steppe

{T}: Add {C}.
{3}{W}, {T}, Sacrifice Blighted Steppe: You gain 2 life for each creature you control.

Ethereal Guidance

Creatures you control get +2/+1 until end of turn.

Cliffside Lookout

{4}{W}: Creatures you control get +1/+1 until end of turn.

Angel of Renewal

Flying
When Angel of Renewal enters, you gain 1 life for each creature you control.

Makindi Aeronaut

Plains

Serra Angel

Flying
Vigilance (Attacking doesn't cause this creature to tap.)

Devilthorn Fox

Affa Protector

Marked by Honor

Enchant creature
Enchanted creature gets +2/+2 and has vigilance. (Attacking doesn't cause it to tap.)

Smite the Monstrous

Destroy target creature with power 4 or greater.

Mighty Leap

Target creature gets +2/+2 and gains flying until end of turn.

Aegis Angel

Flying (This creature can't be blocked except by creatures with flying or reach.)
When Aegis Angel enters, another target permanent gains indestructible for as long as you control Aegis Angel. (Effects that say "destroy" don't destroy it. A creature with indestructible can't be destroyed by damage.)

Courier Griffin

Flying
When Courier Griffin enters, you gain 2 life.

Inspiring Captain

When Inspiring Captain enters, creatures you control get +1/+1 until end of turn.