Theros

Favored Hoplite | Creature | Human Soldier | Heroic — Whenever you cast a spell that targets Favored Hoplite, put a +1/+1 counter on Favored Hoplite and prevent all damage that would be dealt to it this turn. | Winona Nelson

Hopeful Eidolon | Enchantment Creature | Spirit | 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. | Min Yum

Soldier of the Pantheon | Creature | Human Soldier | Protection from multicolored Whenever an opponent casts a multicolored spell, you gain 1 life. | Eric Deschamps

Yoked Ox | Creature | Ox | | Ryan Yee

Triton Shorethief | Creature | Merfolk Rogue | | Howard Lyon

Asphodel Wanderer | Creature | Skeleton Soldier | {2}{B}: Regenerate Asphodel Wanderer. | Scott Chou

Tormented Hero | Creature | Human Warrior | Tormented Hero enters the battlefield tapped. Heroic — Whenever you cast a spell that targets Tormented Hero, each opponent loses 1 life. You gain life equal to the life lost this way. | Winona Nelson

Akroan Crusader | Creature | Human Soldier | Heroic — Whenever you cast a spell that targets Akroan Crusader, create a 1/1 red Soldier creature token with haste. | Johann Bodin

Firedrinker Satyr | Creature | Satyr Shaman | Whenever Firedrinker Satyr is dealt damage, it deals that much damage to you. {1}{R}: Firedrinker Satyr gets +1/+0 until end of turn and deals 1 damage to you. | Anthony Palumbo

Priest of Iroas | Creature | Human Cleric | {3}{W}, Sacrifice Priest of Iroas: Destroy target enchantment. | Clint Cearley

Mistcutter Hydra | Creature | Hydra | This spell can't be countered. Haste, protection from blue Mistcutter Hydra enters the battlefield with X +1/+1 counters on it. | Ryan Pancoast

Sedge Scorpion | Creature | Scorpion | Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.) | John Stanko