As Adaptive Automaton enters the battlefield, choose a creature type. Adaptive Automaton is the chosen type in addition to its other types. Other creatures you control of the chosen type get +1/+1.

Flying At the beginning of each opponent's end step, that player chooses up to two creatures they control, then sacrifices the rest.

Changeling (This card is every creature type.) As Bloodline Pretender enters the battlefield, choose a creature type. Whenever another creature of the chosen type enters the battlefield under your control, put a +1/+1 counter on Bloodline Pretender.

Flying When Burning-Rune Demon enters the battlefield, you may search your library for exactly two cards not named Burning-Rune Demon that have different names. If you do, reveal those cards. An opponent chooses one of them. Put the chosen card into your hand and the other into your graveyard, then shuffle.

Changeling (This card is every creature type.) Changeling Outcast can't block and can't be blocked.

Whenever Daemogoth Titan attacks or blocks, sacrifice a creature.

Flying, trample Pay 2 life: Surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

Each nonland card in your hand without foretell has foretell. Its foretell cost is equal to its mana cost reduced by {2}. (During your turn, you may pay {2} and exile it from your hand face down. Cast it on a later turn for its foretell cost.) Whenever you foretell a card, Dream Devourer gets +2/+0 until end of turn.

Flying, lifelink Pay 7 life: Draw seven cards.

{B}, Sacrifice a creature: Scry 2. {2}{R}, {T}: Exile the top card of your library. You may play that card this turn. When you exile a nonland card this way, Hidetsugu, Devouring Chaos deals damage equal to the exiled card's mana value to any target.

Flying At the beginning of your upkeep, draw a card unless target opponent sacrifices a creature or pays 3 life.

Flying, trample {B}, Sacrifice another creature: Target player mills three cards. Pay 1 life: Add {C}. Spend this mana only to cast a spell from your graveyard.