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

, Pay 1 life: Counter target black spell.

: Prevent the next 1 damage that would be dealt to Ordruun Commando this turn.

This spell costs less to cast for each land card in your graveyard.

Flying, haste

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)

Destroy all nonartifact creatures.

If you control a Plains, you may tap an untapped creature you control rather than pay this spell's mana cost.

Prevent the next 4 damage that would be dealt to any target this turn.

Flying, lifelink, indestructible, haste

Flying

If you would draw a card while your library has no cards in it, instead put five +1/+1 counters on Ormos, Archive Keeper.

, Discard three cards with different names: Draw five cards.

Flying

Tribute 2 (As this creature enters the battlefield, an opponent of your choice may put two +1/+1 counters on it.)

When Ornitharch enters the battlefield, if tribute wasn't paid, create two 1/1 white Bird creature tokens with flying.

Orochi Hatchery enters the battlefield with X charge counters on it.

, : Create a 1/1 green Snake creature token for each charge counter on Orochi Hatchery.

: Add .

As long as Orochi Merge-Keeper is modified, it has ": Add ." (Equipment, Auras you control, and counters are modifications.)

Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)

Whenever one or more creatures you control deal combat damage to a player, create a Treasure token and manifest the top card of that player's library. (Put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.)

Vigilance

Orthodoxy Enforcer gets +2/+0 as long as you control two or more artifacts.

Choose one —

• Return target creature you control and all Auras you control attached to it to their owner's hand.

• Destroy target creature and you lose life equal to its toughness.

• Return target creature card with mana value 1 or less from your graveyard to the battlefield.

Deathtouch

Afterlife 1 (When this creature dies, create a 1/1 white and black Spirit creature token with flying.)

Whenever Orzhov Racketeers deals combat damage to a player, that player discards a card.

Afterlife 2 (When this creature dies, create two 1/1 white and black Spirit creature tokens with flying.)

Vigilance

, Sacrifice an artifact: Target creature you control gets +2/+0 until end of turn.

, , Exile an artifact card with mana value X from your graveyard: Create two tokens that are copies of the exiled card. Activate only as a sorcery.

Enchant basic land you control

When Ossification enters the battlefield, exile target creature or planeswalker an opponent controls until Ossification leaves the battlefield.

: Add .

Channel — , Discard Otawara, Soaring City: Return target artifact, creature, enchantment, or planeswalker to its owner's hand. This ability costs less to activate for each legendary creature you control.

Flying

Whenever Oteclan Levitator attacks, target attacking creature without flying gains flying until end of turn.

Flash

When Otherworldly Escort dies, if it's not a Spirit, return it to the battlefield under its owner's control with four charge counters on it. It's a Spirit Detective. (It's no longer a Human.)

, , Remove a charge counter from Otherworldly Escort: Destroy target creature that dealt damage to you this 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.)

When Outcaster Trailblazer enters the battlefield, add one mana of any color.

Whenever another creature with power 4 or greater enters the battlefield under your control, draw a card.

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.)

Lifelink

When Outlaw Medic dies, draw a card.

Put a +1/+1 counter on target creature you control, then it fights target creature you don't control. (Each deals damage equal to its power to the other.)

Adamant — If at least three green mana was spent to cast this spell, the creature you control gains indestructible until end of turn.

Trample, haste

Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.)

Flash

Flying

Exploit (When this creature enters the battlefield, you may sacrifice a creature.)

When Overcharged Amalgam exploits a creature, counter target spell, activated ability, or triggered ability.

Discard a card, Sacrifice Overeager Apprentice: Add .

Defender

: You gain 1 life.

, Sacrifice Overgrown Arch: Learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.)

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.)

Creatures you control gain vigilance and trample until end of turn. Roll a d20.

1–9 | Creatures you control get +2/+2 until end of turn.

10–19 | Put two +1/+1 counters on each creature you control.

20 | Put four +1/+1 counters on each creature you control.

Whenever you attack with three or more creatures, draw a card.

Whenever you commit a crime during your turn, Overzealous Muscle gains indestructible until end of turn. (Targeting opponents, anything they control, and/or cards in their graveyards is a crime. Damage and effects that say "destroy" don't destroy a creature with indestructible.)

, : Create a 1/1 colorless Servo artifact creature token.

, : Create an X/X colorless Construct artifact creature token, where X is the number of creatures you control.

When Oxidda Scrapmelter enters the battlefield, destroy target artifact.

Enchant creature

Enchanted creature can't attack or block.

Flash (You may cast this spell any time you could cast an instant.)

When Pack Guardian enters the battlefield, you may discard a land card. If you do, create a 2/2 green Wolf creature token.

Other Dogs you control get +1/+1.

Whenever Pack Leader attacks, prevent all combat damage that would be dealt this turn to Dogs you control.

Pack Rat's power and toughness are each equal to the number of Rats you control.

, Discard a card: Create a token that's a copy of Pack Rat.

Choose a creature type. Target creature gets -1/-1 until end of turn for each permanent of the chosen type you control.

At the beginning of combat on your turn, if you control another Wolf or Werewolf, put a +1/+1 counter on Packsong Pup.

When Packsong Pup dies, you gain life equal to its power.

Choose a creature type. Target player draws X cards and loses X life, where X is the number of creatures they control of the chosen type.

As long as Pact Weapon is attached to a creature, you don't lose the game for having 0 or less life.

Whenever equipped creature attacks, draw a card and reveal it. The creature gets +X/+X until end of turn and you lose X life, where X is that card's mana value.

Equip—Discard a card.

Whenever an opponent is dealt 3 or more damage by a single source, that player discards a card.

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

At the beginning of your upkeep, sacrifice a creature if you don't control an Ogre.

Whenever Paired Tactician and at least one other Warrior attack, put a +1/+1 counter on Paired Tactician.

Flying

When Palace Familiar dies, draw a card.

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

When Palace Jailer enters the battlefield, exile target creature an opponent controls until an opponent becomes the monarch.

As Palace Siege enters the battlefield, choose Khans or Dragons.

• Khans — At the beginning of your upkeep, return target creature card from your graveyard to your hand.

• Dragons — At the beginning of your upkeep, each opponent loses 2 life and you gain 2 life.

Vigilance, lifelink

Exile Paladin Danse, Steel Maverick: Each creature you control that's an artifact or Human gains indestructible until end of turn.