Whenever a nontoken creature you control dies, you draw a card and you lose 1 life.
{2}{B}, Sacrifice this creature: Create an X/X black Demon creature token, where X is the number of creatures you controlled that died this turn. Activate only as a sorcery.

Haste
Whenever a creature you control dies, if it attacked this turn, this creature deals 1 damage to each opponent.

Lifelink
Whenever you pay life, draw seven cards.

Level up {1}{W/B}
[level 2-5] Lifelink
[level 6+] Flying, lifelink

At the beginning of combat on your turn, put a level counter on another target creature you control. If it doesn't have level up, it gains level up {2} and “This creature gets +1/+1 for each level counter on it.”

Vigilance, lifelink
Whenever Kei attacks alone, it gains first strike until end of turn.

Once during each of your turns, you may cast a creature spell with mana value 2 or less from your graveyard. If you do, it enters with a finality counter on it.
{W}{B}: Keuya's Presence becomes a 3/2 Dragon creature with flying in addition to its other types.

Menace
Whenever this creature attacks, put a level counter on each creature you control with level up.

Exalted
Whenever a creature you control attacks alone, you may reveal the top card of your library, then put it into your hand. If you do, each player loses life equal to that card's mana value.

Exalted
When this creature enters, exile target creature an opponent controls until this creature leaves the battlefield.

Exalted
When this creature enters, return target artifact or enchantment card from your graveyard to your hand.

Flying
Whenever one or more creatures you control become tapped, tap up to one target creature an opponent controls.

Ninjutsu {2}{G}{U}
Whenever this creature deals combat damage to a player, you may search your library for a land card, put it onto the battlefield tapped, then shuffle. That land becomes a 4/4 Dragon creature in addition to its other types.

Revered
Whenever this creature attacks, target creature defending player controls with lesser power can't block this turn.

Double strike

Whenever you create one or more tokens, put a +1/+1 counter on this creature.

Trample
Damned — At the beginning of your end step, put a +1/+1 counter on this creature if you've sacrificed a permanent this turn.

Flying
Whenever this Vehicle attacks, reveal cards from the top of your library until you reveal a nonland card. Exile that card and put the rest on the bottom of your library in a random order. You may cast the exiled card without paying its mana cost if the resulting spell has mana value 2 or less.
Crew 2

Menace, haste
Whenever you discard one or more cards, you may sacrifice this creature. If you do, return one of the discarded cards from your graveyard to your hand.

Damned — At the beginning of your end step, put a +1/+1 counter on this creature if you've sacrificed a permanent this turn.
When this creature dies, create X 1/1 black Demon Insect creature tokens, where X is this creature's power.

Whenever you sacrifice Koraja, exile it. Until the end of your next turn, you may cast it from exile.
When Koraja enters, if it wasn't cast from your hand, you may discard your hand. If you do, draw two cards.

Whenever this Subroutine runs, exile the top two cards of your library. You may play one of them this turn.

At the beginning of your end step, exile cards from the top of your library until you exile a nonland card. You may cast that card without paying its mana cost if its mana value is less than or equal to the number of cards with cycling abilities in your graveyard. If you don't cast it, put it into your hand. Put the rest on the bottom of your library in a random order.

Level up {2}{U}
[level 1-2] Whenever a land you control enters, cache the top card of your library face down.
[level 3+] Whenever a land you control enters, draw a card.

Vigilance, ward {1}
Whenever Lavis attacks, sacrifice any number of artifacts and/or enchantments. Create that many colorless Forest Plains land tokens named Root Node.