From the Vault: Transform

Flash Flying, vigilance When Archangel Avacyn enters, 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.

1B, Pay 2 life: Draw a card. At the beginning of your upkeep, if you have 5 or less life, you may transform Arguel's Blood Fast.

+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 T: Create a 2/2 black Vampire creature token with flying. B: Transform this creature. Activate only if you control five or more Vampires.

Flying, first strike, vigilance, lifelink Your opponents can't cast spells with mana value 3 or less.

When you cast this spell, you may return target Angel or Human creature card from your graveyard to the battlefield. Flying, vigilance (Melds with Gisela, the Broken Blade.)

Whenever you cast a red spell, untap Chandra. T: Chandra 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 this creature.

Equipped creature gets +1/+0. When equipped creature deals combat damage to a player, unattach Elbrus, then transform it. Equip 1

When Garruk has two or fewer loyalty counters on him, transform him. 0: Garruk 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.

Flying, first strike, lifelink At the beginning of your end step, if you both own and control Gisela and a creature named Bruna, the Fading Light, exile them, then meld them into Brisela, Voice of Nightmares.

Whenever this creature enters 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 this creature.

T: Draw a card, then discard a card. If there are five or more cards in your graveyard, exile Jace, then return him to the battlefield transformed under his owner's control.

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. 2W: 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.

When Nissa enters, you may search your library for a basic Forest card, reveal it, put it into your hand, then shuffle. Whenever a land you control enters, if you control seven or more lands, exile Nissa, then return her to the battlefield transformed under her owner's control.