Abandoned Poppet can't be blocked by creatures with power 2 or less.
Whenever a creature an opponent controls dies, they lose 2 life.

Flying, vigilance, deathtouch
Whenever Abandoner of Flesh or another transformed permanent you control dies, return that card to the battlefield.

Flying, vigilance
Other creatures you control are Armies in addition to their other types.
At the beginning of your end step, create a 0/0 white Army creature token, then put a +1/+1 counter on each Army you control.

Favored
Whenever your Champion deals combat damage to a player, create that many Treasure tokens.

{T}: Draw a card, then discard a card.
Once each turn, when you cast a spell from your graveyard, you may create a 2/1 blue Human Pirate creature token.
Crew 2

Flying
When Archon of Condemnation enters, you may bless target creature.
At the beginning of your upkeep, you may sacrifice a creature. If you do, bless target creature.

Menace
Whenever you cast an artifact spell, each opponent loses 2 life.

Menace
When Askir enters, each opponent loses life equal to the amount of life they've lost this turn.
Wander—{1}{B}{B}, Pay 4 life.

Flying

Vigilance, lifelink
Ward—{2}, Pay 2 life.
Azantium, Perfect Creation has all activated abilities and triggered abilities of other artifacts you control.

When Bangtan Security enters, target creature gets +2/+0 and gains indestructible until end of turn.

{2}, Sacrifice a creature: Teach target creature menace.

Whenever an attacking creature you control dies, Bleeding Edge Memorial deals 1 damage to defending player.
Spellcharge 4

Ward {X}, where X is the number of differently named lands you control.

Bouncers-for-Hire can't attack unless you control a red permanent.

Vigilance
Whenever Builder of Monuments attacks, put a build counter on it. Then you may search your library for an artifact or enchantment card with mana value less than or equal to the number of build counters on Builder of Monuments, put that card onto the battlefield, then shuffle.

Trample
When Canopy Creeper enters, create two Berry tokens.

Trample
When Centaur Mentor enters, target creature gets +X/+0 until end of turn, where X is your devotion to green.

Flying
Whenever Chief Executive Dhante enters or attacks, create a Treasure token, then you may pay {X}. Spend only mana from artifact sources, and X can't be 0. When you do, destroy target nonland permanent with mana value X or less.

As an additional cost to cast this spell, sacrifice any number of creatures, then exile any number of creature cards from your graveyard. This spell costs {2} less to cast for each card or token sacrificed or exiled this way.
Flying

Flying, lifelink
{2}{W}: Untap each creature you've activated this turn. They get +1/+1 and gain lifelink until end of turn. Activate only once each turn.

Menace
Whenever Corporate Mentor attacks, teach target attacking creature with lesser power menace.

When Cosmic Colossus enters, if you cast it from your hand, cast a copy of target card in exile without paying its mana cost unless an opponent exiles two nonland permanents they control.

Vigilance
Whenever this creature transforms into Crown Betrayer or another permanent you control transforms, Crown Betrayer gets +2/+0 and gains indestructible until end of turn.

Deathtouch
Ward—Pay 4 life.
Whenever Cybele of the Frozen Faith deals combat damage to a player, you may skip your next turn. If you do, at the beginning of your next turn's upkeep, each opponent discards their hand, you draw seven cards, then put seven +1/+1 counters on Cybele.