Creature — Human Insect

Insectile Aberration

Secret Lair Drop

Innistrad Checklist

Delver of Secrets // Insectile Aberration

Creature — Human Wizard

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.

Delver of Secrets

Legendary Enchantment

At the beginning of your upkeep, reveal cards from the top of your library until you reveal a creature or planeswalker card. Put that card onto the battlefield and the rest on the bottom of your library in a random order.

The Prismatic Bridge

Legendary Creature — God

Vigilance
{T}: Add one mana of any color.
Other legendary creatures you control have vigilance and "{T}: Add one mana of any color."

Esika, God of the Tree

Legendary Creature — Angel

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

Avacyn, the Purifier

Archangel Avacyn // Avacyn, the Purifier

Shadows Over Innistrad Checklist 2

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.

Archangel Avacyn

Creature — Vampire

Flying
Other Vampire creatures you control get +2/+2.
{T}: Create a 2/2 black Vampire creature token with flying.

Lord of Lineage

Vampire

Bloodline Keeper // Lord of Lineage

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.

Bloodline Keeper

Legendary Planeswalker — Bolas

+2: Draw two cards.
−3: Nicol Bolas deals 10 damage to target creature or planeswalker.
−4: Put target creature or planeswalker card from a graveyard onto the battlefield under your control.
−12: Exile all but the bottom card of target player's library.

Nicol Bolas, the Arisen

Nicol Bolas, the Ravager // Nicol Bolas, the Arisen

Core Set 2019 Checklist

Legendary Creature — Elder Dragon

Flying
When Nicol Bolas enters, each opponent discards a card.
{4}{U}{B}{R}: Exile Nicol Bolas, then return him to the battlefield transformed under his owner's control. Activate only as a sorcery.

Nicol Bolas, the Ravager

Legendary Creature — Demon

Ormendahl, Profane Prince

Westvale Abbey // Ormendahl, Profane Prince

Human Cleric

Land

{T}: Add {C}.
{5}, {T}, Pay 1 life: Create a 1/1 white and black Human Cleric creature token.
{5}, {T}, Sacrifice five creatures: Transform this land, then untap it.