Whenever you cast a spell with a squirrel in its art, you get (an acorn counter).

Whenever a Squirrel you control enters the battlefield or dies, you get .

, Pay X : Target creature gets -X/-X until end of turn.

, Pay X : Target creature gets +X/+X until end of turn.

Ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)

If one or more tokens would be created under your control, twice that many of those tokens are created instead.

Whenever a nontoken modified creature you control dies, create a 1/1 colorless Spirit creature token. (Equipment, Auras you control, and counters are modifications.)

Flying

Whenever another permanent you control leaves the battlefield, if it had counters on it, investigate. (Create a colorless Clue artifact token with ", Sacrifice this artifact: Draw a card.")

Flying

Corrupted — As long as an opponent has three or more poison counters, Apostle of Invasion has double strike.

Flying

Inspired — Whenever Arbiter of the Ideal becomes untapped, reveal the top card of your library. If it's an artifact, creature, or land card, you may put it onto the battlefield with a manifestation counter on it. That permanent is an enchantment in addition to its other types.

Flying

Archfiend of the Dross enters the battlefield with four oil counters on it.

At the beginning of your upkeep, remove an oil counter from Archfiend of the Dross. Then if it has no oil counters on it, you lose the game.

Whenever a creature an opponent controls dies, its controller loses 2 life.

Trample

Cumulative upkeep or (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

When Arctic Nishoba dies, you gain 2 life for each age counter on it.

Arixmethes, Slumbering Isle enters the battlefield tapped with five slumber counters on it.

As long as Arixmethes has a slumber counter on it, it's a land. (It's not a creature.)

Whenever you cast a spell, you may remove a slumber counter from Arixmethes.

: Add .

, Sacrifice Armor Thrull: Put a +1/+2 counter on target creature.

Armored Scrapgorger gets +3/+0 as long as it has three or more oil counters on it.

: Add one mana of any color.

Whenever Armored Scrapgorger becomes tapped, exile target card from a graveyard and put an oil counter on Armored Scrapgorger.

Indestructible

As long as your devotion to white and black is less than seven, Athreos isn't a creature.

At the beginning of your end step, put a coin counter on another target creature.

Whenever a creature with a coin counter on it dies or is put into exile, return that card to the battlefield under your control.

Atraxa's Skitterfang enters the battlefield with three oil counters on it.

At the beginning of combat on your turn, you may remove an oil counter from Atraxa's Skitterfang. When you do, target creature you control gains your choice of flying, vigilance, deathtouch, or lifelink until end of turn.

Flying

At the beginning of your upkeep, you may put a feather counter on target creature. If you do, that creature has base power and toughness 3/1 and has flying for as long as it has a feather counter on it.

Flying

Cycling (, Discard this card: Draw a card.)

When you cycle Avian Oddity, put a flying counter on target creature you control.

Axiom Engraver enters the battlefield with two oil counters on it.

, Remove an oil counter from Axiom Engraver, Discard a card: Draw a card.

At the beginning of your upkeep, put a filibuster counter on Azor's Elocutors. Then if Azor's Elocutors has five or more filibuster counters on it, you win the game.

Whenever a source deals damage to you, remove a filibuster counter from Azor's Elocutors.

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Whenever Balduvian Fallen's cumulative upkeep is paid, it gets +1/+0 until end of turn for each or spent this way.

: Change the text of target white enchantment you control that doesn't have cumulative upkeep by replacing all instances of one color word with another. (For example, you may change "black creatures can't attack" to "blue creatures can't attack.") That enchantment gains "Cumulative upkeep ." (At the beginning of its controller's upkeep, that player puts an age counter on it, then sacrifices it unless they pay its upkeep cost for each age counter on it.)

History Teacher — Sagas you control have read ahead. (As a Saga enters the battlefield, choose a chapter and start with that many lore counters. Skipped chapters don't trigger.)

Doctor's companion (You can have two commanders if the other is the Doctor.)

Baron Von Count enters the battlefield with a doom counter on "5."

Whenever you cast a spell with the indicated numeral in its mana cost, text box, power, or toughness, move the doom counter one numeral to the left.

When the doom counter moves from "1," destroy target player and put that doom counter on "5."

Deathtouch

Toxic 1 (Players dealt combat damage by this creature also get a poison counter.)

Ninjutsu

Biting-Palm Ninja enters the battlefield with a menace counter on it.

Whenever Biting-Palm Ninja deals combat damage to a player, you may remove a menace counter from it. When you do, that player reveals their hand and you choose a nonland card from it. Exile that card.

Whenever you cast a Spirit or Arcane spell, you may put a ki counter on Blademane Baku.

, Remove X ki counters from Blademane Baku: For each counter removed, Blademane Baku gets +2/+0 until end of turn.

Flash

When Blitz Leech enters the battlefield, target creature an opponent controls gets -2/-2 until end of turn. Remove all counters from that creature.

: Put a devotion counter on Bloodthirsty Ogre.

: Target creature gets -X/-X until end of turn, where X is the number of devotion counters on Bloodthirsty Ogre. Activate only if you control a Demon.

Partner with Owen Grady, Raptor Trainer (When this creature enters the battlefield, target player may put Owen into their hand from their library, then shuffle.)

For each kind of counter on Blue, Loyal Raptor, each other Dinosaur you control enters the battlefield with a counter of that kind on it.

Flash

Whenever an opponent puts one or more counters on a creature they control, they put the same number and kind of counters on Bold Plagiarist.

Flying

Corrupted — As long as an opponent has three or more poison counters, Bonepicker Skirge has deathtouch and lifelink.

Vigilance

Whenever an opponent casts a spell, if no mana was spent to cast it, counter that spell.

Sacrifice Boromir, Warden of the Tower: Creatures you control gain indestructible until end of turn. The Ring tempts you.

When you cast this spell, any player may sacrifice a creature. If a player does, counter Brain Gorgers.

Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

First strike

Sacrifice Brass-Talon Chimera: Put a +2/+2 counter on target Chimera creature. It gains first strike. <I>(This effect lasts indefinitely.)</I>

Double strike

Ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)

Other artifacts you control have ward .

Bronze Guardian's power is equal to the number of artifacts you control.

Whenever you cast a Spirit or Arcane spell, you may put a ki counter on Budoka Pupil.

At the beginning of the end step, if there are two or more ki counters on Budoka Pupil, you may flip it.

Reach

Ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)

At the beginning of combat on your turn, other creatures you control with power 4 or greater gain trample and haste until end of turn.

Flying

When Celestial Regulator enters the battlefield, choose target creature you don't control and tap it. If you control a creature with a counter on it, the chosen creature doesn't untap during its controller's next untap step.

At the beginning of your upkeep, put a shred counter on Cephalid Vandal. Then mill a card for each shred counter on Cephalid Vandal.

Flying, first strike

Each creature you control has ward . (Whenever it becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)

If Chapel Shieldgeist would be put into a graveyard from anywhere, exile it instead.

When Charforger enters the battlefield, create a 1/1 red Phyrexian Goblin creature token.

Whenever another creature or artifact you control is put into a graveyard from the battlefield, put an oil counter on Charforger.

Remove three oil counters from Charforger: Exile the top card of your library. You may play that card this turn.

Deathtouch

At the beginning of your upkeep, if your opponents control no permanents with bounty counters on them, put a bounty counter on target creature or planeswalker an opponent controls.

Whenever a permanent an opponent controls with a bounty counter on it dies, you gain 3 life and draw a card.

Flying

At the beginning of your upkeep, sacrifice Chisei, Heart of Oceans unless you remove a counter from a permanent you control.

This spell costs less to cast for each permanent you control with oil counters on it.

Vigilance

When Cinderslash Ravager enters the battlefield, it deals 1 damage to each creature your opponents control.

Clockwork Beast enters the battlefield with seven +1/+0 counters on it.

At end of combat, if Clockwork Beast attacked or blocked this combat, remove a +1/+0 counter from it.

, : Put up to X +1/+0 counters on Clockwork Beast. This ability can't cause the total number of +1/+0 counters on Clockwork Beast to be greater than seven. Activate only during your upkeep.

Clockwork Swarm enters the battlefield with four +1/+0 counters on it.

Clockwork Swarm can't be blocked by Walls.

At end of combat, if Clockwork Swarm attacked or blocked this combat, remove a +1/+0 counter from it.

, : Put up to X +1/+0 counters on Clockwork Swarm. This ability can't cause the total number of +1/+0 counters on Clockwork Swarm to be greater than four. Activate only during your upkeep.

Each other Human you control gets +1/+0 and has ward . (Whenever it becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)

Reach, lifelink

One for My Baby — Whenever you attack with two or more creatures, put two quest counters on Craig Boone, Novac Guard. When you do, Craig Boone deals damage equal to the number of quest counters on it to up to one target creature unless that creature's controller has Craig Boone deal that much damage to them.

As an additional cost to cast this spell, you may collect evidence 6. (Exile cards with total mana value 6 or greater from your graveyard.)

Flying

When Crimestopper Sprite enters the battlefield, tap target creature. If evidence was collected, put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)

Whenever you cast a Spirit or Arcane spell, you may put a ki counter on Cunning Bandit.

At the beginning of the end step, if there are two or more ki counters on Cunning Bandit, you may flip it.

Flying, trample, haste

If Darigaaz Reincarnated would die, instead exile it with three egg counters on it.

At the beginning of your upkeep, if Darigaaz is exiled with an egg counter on it, remove an egg counter from it. Then if Darigaaz has no egg counters on it, return it to the battlefield.

Shadow (This creature can block or be blocked by only creatures with shadow.)

If a card would be put into an opponent's graveyard from anywhere, instead exile it with a void counter on it.

, Sacrifice Dauthi Voidwalker: Choose an exiled card an opponent owns with a void counter on it. You may play it this turn without paying its mana cost.