, : Create a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

Whenever you sacrifice a Food, create a tapped Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Constellation — Whenever Nylea's Colossus or another enchantment you control enters, double target creature's power and toughness until end of turn.

Bestow (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)

Enchanted creature gets +2/+1.

Bestow (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)

Enchanted creature gets +3/+1.

: Add .

: Add . Spend this mana only to cast a creature spell.

, : Put a +1/+1 counter on each Frog, Rabbit, Raccoon, or Squirrel you control that entered the battlefield this turn.

: The player whose turn it is may end the turn. (Exile all spells and abilities from the stack. The player whose turn it is discards down to their maximum hand size. Damage wears off, and "this turn" and "until end of turn" effects end.)

When Obscura Polymorphist enters the battlefield, exile target creature. Its controller seeks a creature card.

When Oil-Gorger Troll enters, you gain 3 life. Then if you control a permanent with an oil counter on it, draw a card.

As this creature transforms into Olag, Ludevic's Hubris, it becomes a copy of a creature card exiled with it, except its name is Olag, Ludevic's Hubris, it's 4/4, and it's a legendary blue and black Zombie in addition to its other colors and types. Put a number of +1/+1 counters on Olag equal to the number of creature cards exiled with it.

Phasing, cumulative upkeep , echo , fading 3, bands with other Dinosaurs, protection from Homarids, snow-covered plainswalk, flanking, rampage 2

Flying

Whenever a creature you control deals combat damage to a player, create that many Treasure tokens.

You may choose not to untap Old Man of the Sea during your untap step.

: Gain control of target creature with power less than or equal to Old Man of the Sea's power for as long as Old Man of the Sea remains tapped and that creature's power remains less than or equal to Old Man of the Sea's power.

Trample

Other creatures you control have trample.

When Old One Eye enters, create a 5/5 green Tyranid creature token.

Fast Healing — At the beginning of your first main phase, you may discard two cards. If you do, return Old One Eye from your graveyard to your hand.

When you cast this spell, reveal cards from the top of your library until you reveal X creature cards. Put all creature cards revealed this way into your graveyard, then put the rest on the bottom of your library in a random order.

Old Stickfingers's power and toughness are each equal to the number of creature cards in your graveyard.

When Old-Growth Dryads enters, each opponent may search their library for a basic land card, put it onto the battlefield tapped, then shuffle.

Trample

When Old-Growth Troll dies, if it was a creature, return it to the battlefield. It's an Aura enchantment with enchant Forest you control and "Enchanted Forest has ‘: Add ' and ‘, , Sacrifice this land: Create a tapped 4/4 green Troll Warrior creature token with trample.'"

Flying

: Olivia Voldaren deals 1 damage to another target creature. That creature becomes a Vampire in addition to its other types. Put a +1/+1 counter on Olivia Voldaren.

: Gain control of target Vampire for as long as you control Olivia Voldaren.

Flying

Whenever another creature you control enters, you may discard a card. If you do, put a +1/+1 counter on that creature, it gains haste until end of turn, and it becomes a Vampire in addition to its other types.

Menace

Whenever Olivia's Attendants deals damage, create that many Blood tokens. (They're artifacts with ", , Discard a card, Sacrifice this artifact: Draw a card.")

: Olivia's Attendants deals 1 damage to any target.

Discard a card: Olivia's Dragoon gains flying until end of turn.

Each non-Vampire creature gets -X/-X until end of turn, where X is the number of Vampires you control.

Trample

Olog-hai Crusher can't block unless you control a Goblin or Orc.

At the beginning of your upkeep, you gain 2 life.

Whenever you gain life, you may pay . If you do, draw a card and each opponent loses 1 life.

At the beginning of your upkeep, if Oloro, Ageless Ascetic is in the command zone, you gain 2 life.

Flying

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

Affinity for Clowns (This spell costs less to cast for each Clown you control.)

Trample

Whenever Order of the Golden Cricket attacks, you may pay . If you do, it gains flying until end of turn.

This spell can't be countered. (This includes by the ward ability.)

Tap up to two target creatures and put a stun counter on each of them. Investigate. (If a permanent with a stun counter would become untapped, remove one from it instead.)

At the beginning of your upkeep, if you have four or more creature cards in your graveyard, you may return target creature card from your graveyard to your hand.

Affinity for Mountains (This spell costs less to cast for each Mountain you control.)

Haste

If one or more +1/+1 counters would be put on an artifact or creature you control, that many plus one +1/+1 counters are put on it instead.

, : Put a +1/+1 counter on target artifact or creature you control. Activate only as a sorcery.

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

Whenever equipped creature attacks, draw a card, then discard a card.

Equip

Craft with one or more creatures (, Exile this artifact, Exile one or more creatures you control and/or creature cards from your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.)

First strike

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

Commander creatures you own have "Whenever you cast a spell from exile, this creature deals damage equal to that spell's mana value to target opponent."

Discard a card: Patrol Hound gains first strike until end of turn.

: Another target Vehicle you control becomes an artifact creature until end of turn.

Crew 4 (Tap any number of creatures you control with total power 4 or more: This Vehicle becomes an artifact creature until end of turn.)

Whenever an artifact you control enters, Perimeter Patrol gets +1/+0 until end of turn.

: Pestilent Wolf gains deathtouch until end of turn.

Whenever Phase Dolphin attacks, another target attacking creature can't be blocked this turn.

Whenever a nontoken artifact is put into your graveyard from the battlefield, return that card to your hand unless target opponent has Pia's Revolution deal 3 damage to them.

When Pin Collection enters, you may put an ability sticker with ticket cost X or less on it without paying that sticker's ticket cost.

Equipped creature gets +1/+1 and has all abilities of ability stickers on Pin Collection.

Equip

At the beginning of your upkeep, if there are four or more creatures on the battlefield, sacrifice Planar Collapse and destroy all creatures. They can't be regenerated.

Trample

Polar Kraken enters tapped.

Cumulative upkeep—Sacrifice a land. (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.)

Exchange control of target land you control and target land an opponent controls. <I>(This effect lasts indefinitely.)</I>

Kicker—Sacrifice a land. (You may sacrifice a land in addition to any other costs as you cast this spell.)

Prevent the next 3 damage that would be dealt this turn to any number of targets, divided as you choose. If this spell was kicked, prevent the next 6 damage this way instead.

Enchant creature

Enchanted creature has flying.

Whenever enchanted creature deals combat damage to a player, create that many 1/1 green Saproling creature tokens.

This spell costs less to cast for each Frog you control.

Target creature you control deals damage equal to twice its power to target creature you don't control.

Whenever one or more cards are put into your graveyard from your library, each opponent loses 1 life for each card type among those cards.

(You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)

, Pay 1 life, Sacrifice Polluted Delta: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.

Evolve (Whenever a creature you control enters, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)

Whenever an opponent casts a noncreature spell with mana value less than Pollywog Prodigy's power, draw a card.