Whenever a non-Spirit creature you control leaves the battlefield, if it had counters on it, put those counters on A Scent to Die For.
At the beginning of your end step, if A Scent to Die For has counters on it, you may create a 0/0 black Spirit creature token and move all counters from A Scent to Die For onto it.

Abandoned Warehouse enters tapped.
{T}: Add {B} or {G}.
{T}, Discard another card named Abandoned Warehouse: Draw a card.

Put target creature on top of its owner's library. Its controller surveils 1, then you surveil 1.

Abominable Avalanche deals 3 damage divided as you choose among one, two, or three targets.
At the beginning of your end step, if you've spent at least five mana to cast spells this turn, you may exile Abominable Avalanche from your graveyard. If you do, create a 3/3 green Yeti creature token with trample.

Put a +1/+1 counter on up to one target creature you control. Prevent all damage that would be dealt this turn except by creatures target player controls with counters on them.

Return up to one target tapped artifact or creature to its owner's hand. Surveil 1.

Exile all artifacts, creatures, and enchantments. Each player's life total becomes equal to their starting life total.

Absolver of Ashes enters with a trample, first strike, menace, and +1/+1 counter on it.
At the beginning of your upkeep, remove a counter from Absolver of Ashes. If you can't, sacrifice it.

Gain control of target creature with mana value less than or equal to your devotion to blue.

Absorbed Painter enters with a +1/+1 counter, a flying counter, and a vigilance counter on it.
Absorbed Painter can't attack or block as long as it has a counter on it.
{U}, {T}: You may move a counter from a creature you control to another creature you control. Activate only as a sorcery.

Acid Hydra enters with X +1/+1 counters on it.
Drop — When Acid Hydra enters, search your library for a creature card with mana value X or less, put it onto the battlefield, then shuffle. Then return that creature to your hand unless you didn't cast any creature spells during your last turn.

Adaptive Blade enters with your choice of two different counters on it from among menace, haste, first strike, or trample.
Equipped creature gets +1/+0.
Keyword counters on Adaptive Blade apply to equipped creature.
Equip {1}

When Adaptive Hydra enters, teach it your choice of haste, menace, or vigilance. Then repeat this process X times.

Target creature you control gets +4/+3 until end of turn.

Target creature you control gets +X/+X, gains trample, and becomes a legendary Rebel until end of turn, where X is its power. Sacrifice that creature at the beginning of the next end step.

Flash
When Agent of Deception enters, counter target creature or planeswalker spell unless its controller pays {X}, where X is your devotion to blue.

Flying, deathtouch

Vigilance
Whenever another creature you control dies, return to your hand target enchantment card from your graveyard with lesser mana value.

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.

Target player reveals their hand. You choose a nonland card from it or a card from their graveyard. Exile that card. You lose 1 life.

Whenever you cast a spell, if mana from an artifact source was spent to cast it, you may copy that spell, and you may choose new targets for the copy. Do this only once each turn.

At the beginning of each opponent's upkeep, that player may pay life equal to the number of pain counters they have plus 1. If they don't, look at their hand, choose a card from it, and exile that card. If they do, that player gets a pain counter.
You may cast cards exiled with Alehana, and mana of any type can be spent to cast them.

Alehana's Eyes has +1/+1 and can't be blocked as long as you've cast an instant or sorcery spell with mana value 4 or greater this turn.

Menace
Whenever you cast an instant or sorcery spell with mana value 4 or greater, put a +1/+1 counter on Alehana's Fleshsearer.

Create a token that's a copy of target creature you control, except it's a 1/1. When you do, pay for and choose any number.
+{C} — That token becomes a copy of a different target creature.
+{W} — You gain life equal to the number of creatures you control.
+{B} — Each player sacrifices a creature.