Ashen-Wing Avenger can't block.
Whenever one or more creatures with a -1/-1 counter on them attack or block, target opponent loses 1 life and you gain 1 life.
Persist

As an additional cost to cast artifact spells, you may pay {2}. When you do, each opponent sacrifices an untapped creature.

Deathtouch
If an opponent would lose life, they lose that much life plus 1 instead.
Spellcharge 3

Create a tapped 2/1 red Human Warrior creature token.
Flashback {2}{R}

Whenever another creature you control enters, put a first strike counter on Aspiring Hero if that creature has first strike and Aspiring Hero doesn't. The same is true for flying, deathtouch, double strike, haste, hexproof, indestructible, lifelink, menace, reach, trample, vigilance, and ward.

Target creature gets +2/+0 until end of turn and must be blocked this turn if able.

Create two 1/1 red Soldier creature tokens.
Revolt — If a permanent you controlled left the battlefield this turn, those tokens get +1/+1 and gain haste until end of turn.

Choose a creature type. Put a +1/+1 counter on each creature you control of the chosen type.
If you control two or more creatures that share a name, draw a card.

Exile the top X cards of your library. Until the end of your next turn, you may play cards exiled this way.
At the Walls deals X damage to each creature.

Face-down spells you cast cost {1} less to cast.
Face-down creatures you control get +1/+1.

Whenever you cast a spell during combat, remove up to one target attacking creature from combat. You may untap that creature.

When Attuned District enters, scry 2.
Whenever you scry, you may pay {1}. If you do, create a 0/0 colorless Construct artifact creature token, then put X +1/+1 counters on it, where X is the number of cards you looked at.

Whenever another nontoken creature you control dies, you may mill a card. If you're ancient, instead you may draw a card.

Aunglade Fox can't be blocked by creatures with power 2 or less.

Vigilance

At the beginning of your end step, put a +1/+1 counter on each creature you control that entered this turn.
{2}, Sacrifice Auroric Guidance: You gain life equal to the number of creatures you control.

{2}, {T}: Surveil 1.
{3}, {T}, Sacrifice Auroric Waygate: Return target card from your graveyard to your hand.

Target creature you control gets +2/+0 and gains first strike until end of turn. If it's attacking, create a 1/1 white Human creature token that's tapped and attacking.

Awoken Ravager enters with a +1/+1 counter on it for each mana spent to cast it.
Endgame
When Awoken Ravager dies, if you're in your endgame, create a number of 1/1 black Nightmare creature tokens equal to its power.

Flying
Endgame
{R}{R}: Awoken Whelp gets +1/+0 until
end of turn. If you're in your endgame, it also gains double strike until end of turn.

As an additional cost to cast this spell, remove any number of counters from among creatures you control. This spell costs {1} less to cast for each counter removed this way.
Search your library for a creature card with mana value X or less, put it onto the battlefield, then shuffle.

Return target creature to its owner's hand.

When Ballot Registrar enters, make a pledge.
Activated abilities of nonland permanents you control cost {1} less to activate. This effect can't reduce the mana in that cost to less than one mana.

Exile target creature. Its controller creates a tapped colorless land token named Far-Off Lands with “{T}: Add one mana of any color.”

Endgame
{G}, Sacrifice Bankbuster Heavy: Destroy target noncreature permanent. Activate only if you're in your endgame.