You may exile a green card with mana value X from your hand rather than pay this spell's mana cost.

You gain X life.

Defender (This creature can't attack.)

As long as Novice Knight is enchanted or equipped, it can attack as though it didn't have defender.

Put a +1/+1 counter on each creature you control. They gain vigilance until end of turn. The Ring tempts you.

Menace

When Noxious Gearhulk enters, you may destroy another target creature. If a creature is destroyed this way, you gain life equal to its toughness.

Noxious Hatchling enters with four -1/-1 counters on it.

Wither (This deals damage to creatures in the form of -1/-1 counters.)

Whenever you cast a black spell, remove a -1/-1 counter from Noxious Hatchling.

Whenever you cast a green spell, remove a -1/-1 counter from Noxious Hatchling.

, : 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.")

, , Discard your hand: Counter target noncreature spell.

Level up (: Put a level counter on this. Level up only as a sorcery.)

LEVEL 1-3

4/2

LEVEL 4+

7/3

: Regenerate Null Champion.

Tap four untapped creatures you control: Destroy target artifact or enchantment.

Return target permanent to its owner's hand.

Gotcha — If an opponent says a number, you may say "Gotcha" When you do, return Number Crunch from your graveyard to your hand.

Flying

Whenever Numot, the Devastator deals combat damage to a player, you may pay . If you do, destroy up to two target lands.

: Add .

, : Choose a color. Add an amount of mana of that color equal to your devotion to that color. (Your devotion to a color is the number of mana symbols of that color in the mana costs of permanents you control.)

When Nylea's Huntmaster enters, target creature you control gets +X/+0 until end of turn, where X is your devotion to green. (Each in the mana costs of permanents you control counts toward your devotion to green.)

As Nyxathid enters, choose an opponent.

Nyxathid gets -1/-1 for each card in the chosen player's hand.

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.)

Reach, trample

Nyxborn Hydra enters with X +1/+1 counters on it.

Enchanted creature gets +1/+1 for each +1/+1 counter on Nyxborn Hydra and has reach and trample.

This spell costs less to cast if an opponent controls a green permanent.

Deathtouch

Whenever Oakhame Adversary deals combat damage to a player, draw a card.

Constellation — Whenever Oakheart Dryads or another enchantment you control enters, target creature gets +1/+1 until end of turn.

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.)

When Oath of Ajani enters, put a +1/+1 counter on each creature you control.

Planeswalker spells you cast cost less to cast.

At the beginning of each player's upkeep, that player chooses target player who controls more creatures than they do and is their opponent. The first player may reveal cards from the top of their library until they reveal a creature card. If the first player does, that player puts that card onto the battlefield and all other cards revealed this way into their graveyard.

At the beginning of each player's upkeep, that player chooses target player whose graveyard has fewer creature cards in it than their graveyard does and is their opponent. The first player may return a creature card from their graveyard to their hand.

When Oath of Jace enters, draw three cards, then discard two cards.

At the beginning of your upkeep, scry X, where X is the number of planeswalkers you control.

At the beginning of each player's upkeep, that player chooses target player who controls more lands than they do and is their opponent. The first player may search their library for a basic land card, put that card onto the battlefield, then shuffle.

Whenever you lose life, for each 1 life you lost, sacrifice a permanent other than Oath of Lim-Dûl unless you discard a card. <I>(Damage dealt to you causes you to lose life.)</I>

: Draw a card.

When Oath of Nissa enters, look at the top three cards of your library. You may reveal a creature, land, or planeswalker card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

You may spend mana as though it were mana of any color to cast planeswalker spells.

When Oath of Teferi enters, exile another target permanent you control. Return it to the battlefield under its owner's control at the beginning of the next end step.

You may activate the loyalty abilities of planeswalkers you control twice each turn rather than only once.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — You and target opponent each create a Food token.

II — Each opponent loses 3 life. Create a Treasure token.

III — Create three tapped 1/1 white Spirit creature tokens with flying.

Vigilance

Other creatures you control get +0/+2 and have vigilance.

Oathsworn Vampire enters tapped.

You may cast Oathsworn Vampire from your graveyard if you gained life this turn.

Casualty X. The copy isn't legendary and has starting loyalty X. (As you cast this spell, you may sacrifice a creature with power X. When you do, copy this spell. The copy becomes a token.)

+1: Each opponent loses 2 life unless they discard a card. If you control a Demon or Devil, you gain 2 life.

−2: Create a 1/1 red Devil creature token with "When this creature dies, it deals 1 damage to any target."

−7: Target player draws seven cards and loses 7 life.

Whenever an opponent draws a card, Ob Nixilis, the Hate-Twisted deals 1 damage to that player.

−2: Destroy target creature. Its controller draws two cards.

: 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.)

: Add .

: Return Oboro, Palace in the Clouds to its owner's hand.

Choose one —

• Return target multicolored permanent card with mana value 3 or less from your graveyard to the battlefield tapped.

• Counter target instant or sorcery spell.

• Destroy target creature or planeswalker with mana value 3 or less.

Face-down creature spells you cast cost less to cast.

: Turn Obscuring Aether face down. (It becomes a 2/2 creature.)

Draw a card.

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.)

This spell costs less to cast for each land your opponents control that could produce .

Flying

When Obsidian Charmaw enters, destroy target nonbasic land an opponent controls.

When Obstinate Baloth enters, you gain 4 life.

If a spell or ability an opponent controls causes you to discard Obstinate Baloth, put it onto the battlefield instead of putting it into your graveyard.

Draw X cards, then discard X cards. Create a 1/1 white Spirit creature token with flying for each card type among cards discarded this way.

Trample

Ochre Jelly enters with X +1/+1 counters on it.

Split — When Ochre Jelly dies, if it had two or more +1/+1 counters on it, create a token that's a copy of it at the beginning of the next end step. The token enters with half that many +1/+1 counters on it, rounded down.

When Octoprophet enters, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Flying

As long as you control a transformed permanent, Oculus Whelp has "When Oculus Whelp dies, draw a card."

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.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — Put a +1/+1 counter on up to one target creature. Create a Food token.

II — Draw a card. Create a Food token.

III — Create a 1/1 white Halfling creature token for each Food you control.

Haste

Whenever a creature you control with haste attacks, create a tapped Treasure token.

When Ogre Gatecrasher enters, destroy target creature with defender.

Equipped creature gets +2/+2.

Whenever Ogre-Head Helm or equipped creature deals combat damage to a player, you may sacrifice it. If you do, discard your hand, then draw three cards.

Reconfigure (: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)

Attacking creatures you control have deathtouch.

Whenever a creature you control deals combat damage to a player, draw a card.

: Target snow creature gains first strike until end of turn. ( can be paid with one mana from a snow source.)

Trample

Whenever Ojer Kaslem deals combat damage to a player, reveal that many cards from the top of your library. You may put a creature card and/or a land card from among them onto the battlefield. Put the rest on the bottom in a random order.

When Ojer Kaslem dies, return it to the battlefield tapped and transformed under its owner's control.