Celestial Archon

Bestow {5}{W}{W} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)
Flying, first strike
Enchanted creature gets +4/+4 and has flying and first strike.

Suture Priest

Whenever another creature you control enters, you may gain 1 life.
Whenever a creature an opponent controls enters, you may have that player lose 1 life.

Trusted Pegasus

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever this creature attacks, target attacking creature without flying gains flying until end of turn.

Ajani's Sunstriker

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

Ajani's Pridemate

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

Bond of Discipline

Tap all creatures your opponents control. Creatures you control gain lifelink until end of turn.

Plains

Dauntless Onslaught

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

Ordeal of Heliod

Enchant creature
Whenever enchanted creature attacks, put a +1/+1 counter on it. Then if it has three or more +1/+1 counters on it, sacrifice this Aura.
When you sacrifice this Aura, you gain 10 life.

Karametra's Blessing

Target creature gets +2/+2 until end of turn. If it's an enchanted creature or enchantment creature, it also gains hexproof and indestructible until end of turn. (It can't be the target of spells or abilities your opponents control. Damage and effects that say "destroy" don't destroy it.)

Mirror Shield

Equipped creature gets +0/+2 and has hexproof and "Whenever a creature with deathtouch blocks or becomes blocked by this creature, destroy that creature."
Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

Hopeful Eidolon

Bestow {3}{W} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)
Lifelink (Damage dealt by this creature also causes you to gain that much life.)
Enchanted creature gets +1/+1 and has lifelink.

Wingsteed Rider

Flying
Heroic — Whenever you cast a spell that targets this creature, put a +1/+1 counter on this creature.

Arrest

Enchant creature
Enchanted creature can't attack or block, and its activated abilities can't be activated.

Aegis Angel

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

Take Heart

Target creature gets +2/+2 until end of turn. You gain 1 life for each attacking creature you control.

Serra Angel

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

Akroan Skyguard

Rally of Wings

Untap all creatures you control. Creatures you control with flying get +2/+2 until end of turn.