Flash

Flying, vigilance

When Archangel Avacyn enters the battlefield, creatures you control gain indestructible until end of turn.

When a non-Angel creature you control dies, transform Archangel Avacyn at the beginning of the next upkeep.

+1: Until end of turn, up to one target creature gets +2/+2 and gains vigilance and haste.

0: Create a 2/2 green Wolf creature token. Transform Arlinn Kord.

Flying

When this creature transforms into Avacyn, the Purifier, it deals 3 damage to each other creature and each opponent.

Flying, first strike, vigilance, lifelink

Your opponents can't cast spells with mana value 3 or less.

Whenever you cast a red spell, untap Chandra, Fire of Kaladesh.

: Chandra, Fire of Kaladesh deals 1 damage to target player or planeswalker. If Chandra has dealt 3 or more damage this turn, exile her, then return her to the battlefield transformed under her owner's control.

At the beginning of your upkeep, look at the top card of your library. You may reveal that card. If an instant or sorcery card is revealed this way, transform Delver of Secrets.

When Garruk Relentless has two or fewer loyalty counters on him, transform him.

0: Garruk Relentless deals 3 damage to target creature. That creature deals damage equal to its power to him.

0: Create a 2/2 green Wolf creature token.

+2: Up to one target creature an opponent controls attacks Gideon, Battle-Forged 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, Battle-Forged 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.

Whenever this creature enters the battlefield or transforms into Huntmaster of the Fells, create a 2/2 green Wolf creature token and you gain 2 life.

At the beginning of each upkeep, if no spells were cast last turn, transform Huntmaster of the Fells.

+1: Up to one target creature gets -2/-0 until your next turn.

−3: You may cast target instant or sorcery card from your graveyard this turn. If that spell would be put into your graveyard, exile it instead.

−9: You get an emblem with "Whenever you cast a spell, target opponent mills five cards."

At end of combat, if Kytheon, Hero of Akros and at least two other creatures attacked this combat, exile Kytheon, then return him to the battlefield transformed under his owner's control.

: Kytheon gains indestructible until end of turn.

Lifelink

Whenever another nontoken creature you control dies, exile Liliana, Heretical Healer, then return her to the battlefield transformed under her owner's control. If you do, create a 2/2 black Zombie creature token.

+1: Reveal the top card of your library. If it's a land card, put it onto the battlefield. Otherwise, put it into your hand.

−2: Create Ashaya, the Awoken World, a legendary 4/4 green Elemental creature token.

−7: Untap up to six target lands. They become 6/6 Elemental creatures. They're still lands.

Trample

Whenever this creature transforms into Ravager of the Fells, it deals 2 damage to target opponent or planeswalker and 2 damage to up to one target creature that player or that planeswalker's controller controls.

At the beginning of each upkeep, if a player cast two or more spells last turn, transform Ravager of the Fells.

Flying, intimidate, trample (A creature with intimidate can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Whenever a player loses the game, put thirteen +1/+1 counters on Withengar Unbound.