Serra Angel

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

Condemn

Put target attacking creature on the bottom of its owner's library. Its controller gains life equal to its toughness.

Ajani's Mantra

At the beginning of your upkeep, you may gain 1 life.

Ajani's Pridemate

Whenever you gain life, put a +1/+1 counter on this creature.

Solemn Offering

Destroy target artifact or enchantment. You gain 4 life.

Siege Mastodon

Pacifism

Enchant creature
Enchanted creature can't attack or block.

Plains

Armored Ascension

Enchant creature
Enchanted creature gets +1/+1 for each Plains you control and has flying.

Mighty Leap

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

Palace Guard

Palace Guard can block any number of creatures.

Inspired Charge

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

Infantry Veteran

{T}: Target attacking creature gets +1/+1 until end of turn.

War Priest of Thune

When War Priest of Thune enters, you may destroy target enchantment.

Squadron Hawk

Flying
When Squadron Hawk enters, you may search your library for up to three cards named Squadron Hawk, reveal them, put them into your hand, then shuffle.

Safe Passage

Prevent all damage that would be dealt to you and creatures you control this turn.