Graft 4 (This creature enters the battlefield with four +1/+1 counters on it. Whenever another creature enters the battlefield, you may move a +1/+1 counter from this creature onto it.)

, Remove two +1/+1 counters from among creatures you control: Draw a card.

At the beginning of your upkeep, you may create a 1/1 green Squirrel creature token.

Threshold — All Squirrels get +2/+2 as long as seven or more cards are in your graveyard.

You have no maximum hand size.

Sonic Booster — Whenever Nyssa of Traken attacks, sacrifice X artifacts. When you sacrifice one or more artifacts this way, tap up to X target creatures and you draw X cards.

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

You may cast Oakshade Stalker as though it had flash if you pay more to cast it.

Daybound (If a player casts no spells during their own turn, it becomes night next turn.)

Oathsworn Knight enters the battlefield with four +1/+1 counters on it.

Oathsworn Knight attacks each combat if able.

If damage would be dealt to Oathsworn Knight while it has a +1/+1 counter on it, prevent that damage and remove a +1/+1 counter from it.

When Obsessive Skinner enters the battlefield, put a +1/+1 counter on target creature.

Delirium — At the beginning of each opponent's upkeep, if there are four or more card types among cards in your graveyard, put a +1/+1 counter on target creature.

Protection from black

: Target creature gains protection from black until end of turn.

At the beginning of each combat, creatures you control gain first strike until end of turn if a creature you control has first strike. The same is true for flying, deathtouch, double strike, haste, hexproof, indestructible, lifelink, menace, reach, skulk, trample, and vigilance.

Whenever Odric's Outrider or another creature you control dies, put a +1/+1 counter on target creature you control.

Whenever you cast a noncreature spell, choose one —

• Tap target creature.

• Ojutai Exemplars gains first strike and lifelink until end of turn.

• Exile Ojutai Exemplars, then return it to the battlefield tapped under its owner's control.

As long as you have more cards in hand than each opponent, Okina Nightwatch gets +3/+3.

Vigilance

Sacrifice Ollenbock Escort: Target creature you control with a +1/+1 counter on it gains lifelink and indestructible until end of turn.

Flying

When Oltec Cloud Guard enters the battlefield, create a 1/1 colorless Gnome artifact creature token.

Omenport Vigilante has double strike as long as you've committed a crime this turn. (Targeting opponents, anything they control, and/or cards in their graveyards is a crime.)

When Ominous Traveler enters the battlefield, draft a card from Ominous Traveler's spellbook. That card perpetually gains "You may spend mana as though it were mana of any color to cast this spell" and "When you cast this spell, return a creature named Ominous Traveler you control to its owner's hand."

Target creature gets +2/+2 until end of turn. Untap it. (Then exile this card. You may cast the creature later from exile.)

: Target creature you control gains deathtouch until end of turn. (Any amount of damage it deals to a creature is enough to destroy it.)

: Opportunist deals 1 damage to target creature that was dealt damage this turn.

: Target opponent chooses any number of creatures they control. During that player's next turn, the chosen creatures attack if able, and other creatures can't attack. At the beginning of that turn's end step, destroy each of the chosen creatures that didn't attack this turn. Activate only during your turn.

: All damage that would be dealt to target creature this turn by a source of your choice is dealt to Oracle's Attendants instead.

Whenever Oran-Rief Survivalist or another Ally enters the battlefield under your control, you may put a +1/+1 counter on Oran-Rief Survivalist.

Flying

Order of Midnight can't block.

Defender (This creature can't attack.)

As Order of the Stars enters the battlefield, choose a color.

Order of the Stars has protection from the chosen color.

: Prevent the next 3 damage that would be dealt to any target this turn.

: Prevent all damage that would be dealt to target creature this turn.

Grandeur — Discard another card named Oriss, Samite Guardian: Target player can't cast spells this turn, and creatures that player controls can't attack this turn.

At the beginning of your upkeep, each player may put two +1/+1 counters on a creature they control. If a player does, creatures that player controls can't attack you or planeswalkers you control until your next turn.

Haunt (When this creature dies, exile it haunting target creature.)

When Orzhov Euthanist enters the battlefield or the creature it haunts dies, destroy target creature that was dealt damage this turn.

Haunt (When this creature dies, exile it haunting target creature.)

When Orzhov Pontiff enters the battlefield or the creature it haunts dies, choose one —

• Creatures you control get +1/+1 until end of turn.

• Creatures you don't control get -1/-1 until end of turn.

When you cast this spell, create a token that's a copy of it, except it isn't legendary.

: Add . Spend this mana only to cast an artifact spell or activate an ability of an artifact.

Paradox — Whenever you cast a spell from anywhere other than your hand, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

Dinosaur spells you cast cost less to cast.

: Target Dinosaur gains haste until end of turn.

When Outcaster Greenblade enters the battlefield, search your library for a basic land card or a Desert card, reveal it, put it into your hand, then shuffle.

Outcaster Greenblade gets +1/+1 for each Desert you control.

, Sacrifice Outland Liberator: Destroy target artifact or enchantment.

Daybound (If a player casts no spells during their own turn, it becomes night next turn.)

When Outlaw Stitcher enters the battlefield, create a 2/2 blue and black Zombie Rogue creature token, then put two +1/+1 counters on that token for each spell you've cast this turn other than the first.

Plot (You may pay and exile this card from your hand. Cast it as a sorcery on a later turn without paying its mana cost. Plot only as a sorcery.)

Whenever an artifact enters the battlefield under your control, you may return Ovalchase Daredevil from your graveyard to your hand.

First Contact — Whenever Overseer of Vault 76 or another creature with power 3 or less enters the battlefield under your control, put a quest counter on Overseer of Vault 76.

At the beginning of combat on your turn, you may remove three quest counters from among permanents you control. When you do, put a +1/+1 counter on each creature you control and they gain vigilance until end of turn.

When Overwhelmed Apprentice enters the battlefield, each opponent mills two cards. Then you scry 2. (Look at the top two cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)

When Ovinomancer enters the battlefield, sacrifice it unless you return three basic lands you control to their owner's hand.

, Return Ovinomancer to its owner's hand: Destroy target creature. It can't be regenerated. That creature's controller creates a 0/1 green Sheep creature token.

Partner with Blue, Loyal Raptor

: Put your choice of a menace, trample, reach, or haste counter on target Dinosaur. Activate only as a sorcery.

Inspired — Whenever Pain Seer becomes untapped, reveal the top card of your library and put that card into your hand. You lose life equal to that card's mana value.

Whenever you cast an artifact spell, you may have target creature get +2/+0 and gain deathtouch until end of turn.

Palace Guard can block any number of creatures.

When Palace Sentinels enters the battlefield, you become the monarch.

First strike, protection from black and from red (This creature deals combat damage before creatures without first strike. It can't be blocked, targeted, dealt damage, or enchanted by anything black or red.)

Draft Paliano Vanguard face up.

As you draft a creature card, you may reveal it, note its creature types, then turn Paliano Vanguard face down.

Other creatures you control of a type you noted for cards named Paliano Vanguard get +1/+1.

Whenever Panicked Bystander or another creature you control dies, you gain 1 life.

At the beginning of your end step, if you gained 3 or more life this turn, transform Panicked Bystander.

Other red creatures you control get +1/+1.

, : Another target red creature you control gains haste until end of turn. (It can attack and this turn.)

Other white creatures you control get +1/+1.

, : Another target white creature you control gains vigilance until end of turn. (Attacking doesn't cause it to tap.)

Delirium — Paranoid Parish-Blade gets +1/+0 and has first strike as long as there are four or more card types among cards in your graveyard.

First strike

: Pardic Collaborator gets +1/+1 until end of turn.