Flying

At the beginning of your upkeep, put the top card of your library into your graveyard. If it’s an instant or sorcery card, transform Aberrant Researcher.

Flying

Spells your opponents cast that target Accursed Witch cost {1} less to cast.

When Accursed Witch dies, return it to the battlefield transformed under your control attached to target opponent.

Enchant player

Spells you cast that target enchanted player cost {1} less to cast.

At the beginning of enchanted player’s upkeep, that player loses 1 life and you gain 1 life.

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

Whenever this creature transforms into Werewolf Ransacker, you may destroy target artifact. If that artifact is put into a graveyard this way, Werewolf Ransacker deals 3 damage to that artifact’s controller.

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

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.

Flying

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

{1}{B}, 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.

(Transforms from Arguel’s Blood Fast.)

{T}: Add {B}.

{T}, Sacrifice a creature: You gain life equal to the sacrificed creature’s toughness.

+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.

+1: Creatures you control get +1/+1 and gain trample until end of turn.

−1: Arlinn, Embraced by the Moon deals 3 damage to any target. Transform Arlinn, Embraced by the Moon.

−6: You get an emblem with “Creatures you control have haste and ‘{T}: This creature deals damage equal to its power to any target.’”

{B}: Put the top card of your library into your graveyard.

Delirium — At the beginning of your end step, if there are four or more card types among cards in your graveyard, transform Autumnal Gloom.

Trample, hexproof

At the beginning of your end step, if Avacynian Missionaries is equipped, transform it.

When this creature transforms into Lunarch Inquisitors, you may exile another target creature until Lunarch Inquisitors leaves the battlefield.

{1}, {T}: Draw a card, then exile a card from your hand. If cards with five or more different converted mana costs are exiled with Azor’s Gateway, you gain 5 life, untap Azor’s Gateway, and transform it.

(Transforms from Azor’s Gateway.)

{T}: Add X mana of any one color, where X is your life total.

Flying

{T}: Create a 2/2 black Vampire creature token with flying.

{B}: Transform Bloodline Keeper. Activate this ability only if you control five or more Vampires.

Flying

Other Vampire creatures you control get +2/+2.

{T}: Create a 2/2 black Vampire creature token with flying.

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

Attacking creatures you control get +1/+0 and have trample.

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

{T}: You gain 1 life. Then if you have at least 10 life more than your starting life total, transform Chalice of Life.

{T}: Target player loses 5 life.

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

{T}: 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.

+1: Chandra, Roaring Flame deals 2 damage to target player or planeswalker.

−2: Chandra, Roaring Flame deals 2 damage to target creature.

−7: Chandra, Roaring Flame deals 6 damage to each opponent. Each player dealt damage this way gets an emblem with “At the beginning of your upkeep, this emblem deals 3 damage to you.”

{T}, Tap an untapped Vampire you control: Transform Chosen of Markov.

{T}: Draw a card, then discard a card. If a creature card is discarded this way, untap Civilized Scholar, then transform it.

At the beginning of your end step, if Homicidal Brute didn’t attack this turn, tap Homicidal Brute, then transform it.

At the beginning of your upkeep, you may transform Cloistered Youth.

At the beginning of your end step, you lose 1 life.

Whenever Conduit of Storms attacks, add {R} at the beginning of your next main phase this turn.

{3}{R}{R}: Transform Conduit of Storms.

Whenever Conduit of Emrakul attacks, add {C}{C} at the beginning of your next main phase this turn.

When Conqueror’s Galleon attacks, exile it at end of combat, then return it to the battlefield transformed under your control.

Crew 4 (Tap any number of creatures you control with total power 4 or more: This Vehicle becomes an artifact creature until end of turn.)

(Transforms from Conqueror’s Galleon.)

{T}: Add {C}.

{2}, {T}: Draw a card, then discard a card.

{4}, {T}: Draw a card.

{6}, {T}: Return target card from your graveyard to your hand.

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

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

Cryptolith Fragment enters the battlefield tapped.

{T}: Add one mana of any color. Each player loses 1 life.

At the beginning of your upkeep, if each player has 10 or less life, transform Cryptolith Fragment.

Flying, deathtouch

Whenever Aurora of Emrakul attacks, each opponent loses 3 life.