
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

Kytheon, Hero of Akros // Gideon, Battle-Forged | Legendary Creature // Legendary Planeswalker | Human Soldier // Gideon | At end of combat, if Kytheon and at least two other creatures attacked this combat, exile Kytheon, then return him to the battlefield transformed under his owner's control.
{2}{W}: Kytheon gains indestructible until end of turn. // +2: Up to one target creature an opponent controls attacks Gideon during its controller's next turn if able.
+1: Until your next turn, target creature gains indestructible. Untap that creature.
0: Until end of turn, Gideon becomes a 4/4 Human Soldier creature with indestructible that's still a planeswalker. Prevent all damage that would be dealt to him this turn. | Willian Murai

Lagonna-Band Trailblazer | Creature | Centaur Scout | Heroic — Whenever you cast a spell that targets Lagonna-Band Trailblazer, put a +1/+1 counter on Lagonna-Band Trailblazer. | James Zapata

Cloudfin Raptor | Creature | Bird Mutant | Flying
Evolve (Whenever a creature you control enters, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.) | Maxime Minard

Sanitarium Skeleton | Creature | Skeleton | {2}{B}: Return Sanitarium Skeleton from your graveyard to your hand. | Kev Walker

Tormented Hero | Creature | Human Warrior | Tormented Hero enters 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. (It can attack and {T} as soon as it comes under your control.) | Johann Bodin

Legion Loyalist | Creature | Goblin Soldier | Haste
Battalion — Whenever Legion Loyalist and at least two other creatures attack, creatures you control gain first strike and trample until end of turn and can't be blocked by creature tokens this turn. | Eric Deschamps

Monastery Swiftspear | Creature | Human Monk | Haste
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) | Steve Argyle

Zurgo Bellstriker | Legendary Creature | Orc Warrior | Zurgo Bellstriker can't block creatures with power 2 or greater.
Dash {1}{R} (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.) | Jason Rainville

Experiment One | Creature | Human Ooze | Evolve (Whenever a creature you control enters, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)
Remove two +1/+1 counters from Experiment One: Regenerate Experiment One. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.) | Chase Stone

Gladecover Scout | Creature | Elf Scout | Hexproof (This creature can't be the target of spells or abilities your opponents control.) | Brian Valeza

Hero of Leina Tower | Creature | Human Warrior | Heroic — Whenever you cast a spell that targets Hero of Leina Tower, you may pay {X}. If you do, put X +1/+1 counters on Hero of Leina Tower. | Aaron Miller

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