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

Rebel Salvo deals 5 damage to target creature or planeswalker. That permanent loses indestructible until end of turn.

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

Trample, haste

At the beginning of your end step, if Riders of the Mark attacked this turn, return it to its owner's hand. If you do, create a number of 1/1 white Human Soldier creature tokens equal to its toughness.

As an additional cost to cast this spell, you may sacrifice any number of nonland permanents. This spell costs less to cast for each permanent sacrificed this way.

Whenever Rottenmouth Viper enters or attacks, put a blight counter on it. Then for each blight counter on it, each opponent loses 4 life unless that player sacrifices a nonland permanent of their choice or discards a card.

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

Vigilance, reach, trample

When Rumbleweed enters, other creatures you control get +3/+3 and gain trample until end of turn.

Flash

This spell costs less to cast if there are no instant or sorcery cards in your hand.

When Saiba Syphoner enters the battlefield, return target instant or sorcery card from your graveyard to your hand.

If Saiba Syphoner would die, shuffle it into your library instead.

Flash

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

You may have Sakashima's Protege enter as a copy of any permanent that entered this turn.

This spell costs less to cast if you've gained 3 or more life this turn.

Return up to two target creature cards from your graveyard to your hand.

This spell costs less to cast if it targets a Dinosaur you control.

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

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

Target creature gets +2/+0 and gains lifelink and indestructible until end of turn.

Delirium — This spell costs less to cast if there are four or more card types among cards in your graveyard.

Draw three cards.

: Seafloor Stalker gets +1/+0 until end of turn and can't be blocked this turn. This ability costs less to activate for each creature in your party. (Your party consists of up to one each of Cleric, Rogue, Warrior, and Wizard.)

This spell costs less to cast for each creature you attacked with this turn.

When Search Party Captain enters, draw a card.

This spell costs less to cast if you've committed a crime this turn. (Targeting opponents, anything they control, and/or cards in their graveyards is a crime.)

Draw two cards.

Flash

This spell costs less to cast for each creature attacking you.

When Sentry Bot enters, you get for each creature attacking you.

At the beginning of combat on your turn, you may pay . If you do, put a +1/+1 counter on each creature you control.

: Sewer Crocodile can't be blocked this turn. This ability costs less to activate if there are five or more mana values among cards in your graveyard.

If your life total is less than your starting life total, this spell costs less to cast, where X is the difference.

This spell costs less to cast for each creature in your party. (Your party consists of up to one each of Cleric, Rogue, Warrior, and Wizard.)

Haste

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

Flying

Jolly Gutpipes — , , Sacrifice a creature: The next creature spell you cast this turn has cascade. (When you next cast a creature spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

: Add .

Channel — , Discard Sokenzan, Crucible of Defiance: Create two 1/1 colorless Spirit creature tokens. They gain haste until end of turn. This ability costs less to activate for each legendary creature you control.

Annihilator 1 (Whenever this creature attacks, defending player sacrifices a permanent of their choice.)

: Create two 0/1 colorless Eldrazi Spawn creature tokens. They have "Sacrifice this creature: Add ."

: Cast any number of Eldrazi spells from among cards you own outside the game without paying their mana costs.

This spell costs less to cast for each creature in your party. (Your party consists of up to one each of Cleric, Rogue, Warrior, and Wizard.)

You gain 3 life and draw three cards.

This spell costs less to cast if you control a Giant.

Squash deals 6 damage to target creature or planeswalker.

Metalcraft — This spell costs less to cast if you control three or more artifacts.

Counter target spell.

This spell costs less to cast for each attacking creature.

Create a 6/12 colorless Construct artifact creature token with trample. Exile it at the beginning of your next end step.

This spell costs less to cast if you've cast an instant or sorcery spell this turn.

Flying

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

When Stormwing Entity enters, scry 2.

Undaunted (This spell costs less to cast for each opponent.)

Destroy all creatures.

This spell costs less to cast if you control at least two creatures that share a creature type.

Put target nonland permanent into its owner's library second from the top.

, : Draw a card. This ability costs less to activate for each other artifact you control.

This spell costs less to cast for each creature in your party.

: Look at the top six cards of your library. You may reveal up to two Cleric, Rogue, Warrior, Wizard, and/or Ally cards from among them and put them into your hand. Put the rest on the bottom of your library in a random order.

The first activated ability of an artifact you activate each turn costs less to activate.

+1: Draw two cards. Then discard two cards unless you discard an artifact card.

−2: Target artifact becomes an artifact creature. If it isn't a Vehicle, it has base power and toughness 4/4.

−6: You get an emblem with "Whenever an artifact you control becomes tapped, draw a card."

Counter target spell unless its controller pays , where X is your devotion to blue. (Each in the mana costs of permanents you control counts toward your devotion to blue.)

Those Who Came Before — This spell costs less to cast for each historic card in your graveyard. (Artifacts, legendaries, and Sagas are historic.)

Exile any number of historic cards from your graveyard with total mana value 30 or greater: You get an emblem with "Creatures you control have base power and toughness 9/9."

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

Creatures you control get +1/+1.

Whenever you cast a legendary spell, create a 2/2 white Knight creature token with vigilance.

, : Create a 2/2 white Knight creature token with vigilance.

This spell costs less to cast if your life total is 5 or less.

Exile target creature or planeswalker. Search its controller's graveyard, hand, and library for any number of cards with the same name as that permanent and exile them. That player shuffles, then draws a card for each card exiled from their hand this way.

This spell costs less to cast, where X is the greatest power among creatures you control.

: Add . You gain 2 life.

Whenever a nontoken creature you control enters, put a +1/+1 counter on it and draw a card.

This spell costs less to cast, where X is the total toughness of creatures you control.

Defender

: Until end of turn, target creature you control gets +1/+0, gains "Whenever this creature deals combat damage to a player, draw cards equal to its toughness," and can attack as though it didn't have defender.

This spell costs less to cast if it targets a permanent you control.

Return up to two target nonland permanents to their owners' hands.

Affinity for artifacts (This spell costs less to cast for each artifact you control.)

Draw two cards.

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

This spell costs less to cast if it targets a creature you control with a +1/+1 counter on it.

Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.)

Affinity for planeswalkers (This spell costs less to cast for each planeswalker you control.)

Flying, vigilance

Whenever an opponent attacks with creatures, if two or more of those creatures are attacking you and/or planeswalkers you control, that opponent loses 3 life and you draw a card.

This spell costs less to cast if it targets a blue permanent.

This spell can't be countered.

Torch Breath deals X damage to target creature or planeswalker.

When Towashi Guide-Bot enters, put a +1/+1 counter on target creature you control.

, : Draw a card. This ability costs less to activate for each modified creature you control. (Equipment, Auras you control, and counters are modifications.)

Affinity for artifact creatures (This spell costs less to cast for each artifact creature you control.)

Artifact creatures you control have menace.

At the beginning of your end step, create a 0/0 colorless Construct artifact creature token with "This creature gets +1/+1 for each artifact you control."

This spell costs less to cast for each creature type among creatures you control. This effect can't reduce the amount of mana this spell costs by more than .

Changeling (This card is every creature type.)

Double strike

Veteran Adventurer is also a Cleric, Rogue, Warrior, and Wizard.

This spell costs less to cast for each creature in your party.

Vigilance

Whenever you cast a noncreature spell, put an oil counter on Vindictive Flamestoker.

, Sacrifice Vindictive Flamestoker: Discard your hand, then draw four cards. This ability costs less to activate for each oil counter on Vindictive Flamestoker.

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

Creatures you control get +1/+0 until end of turn.

Target opponent puts a creature card of their choice from their graveyard onto the battlefield under your control.

Flashback . This spell costs less to cast this way, where X is the greatest mana value of a commander you own on the battlefield or in the command zone. (You may cast this card from your graveyard for its flashback cost. Then exile it.)