Whenever Red-Hot Hottie deals damage to a creature, put a third-degree-burn counter on that creature. It gains "At the beginning of each end step, sacrifice this creature unless you scream ‘Aaah' at the top of your lungs."

Return all artifact and enchantment cards from your graveyard to the battlefield.

Miracle (You may cast this card for its miracle cost when you draw it if it's the first card you drew this turn.)

When Redtooth Genealogist enters, create a Royal Role token attached to another target creature you control. (If you control another Role on it, put that one into the graveyard. Enchanted creature gets +1/+1 and has ward .)

Counter target spell unless its controller pays .

Reduce to Ashes deals 5 damage to target creature. If that creature would die this turn, exile it instead.

Exile target nonland permanent. Its controller creates a 3/2 red and white Spirit creature token.

Whenever Reef Pirates deals damage to an opponent, that player mills a card.

When Reef Worm dies, create a 3/3 blue Fish creature token with "When this creature dies, create a 6/6 blue Whale creature token with ‘When this creature dies, create a 9/9 blue Kraken creature token.'"

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)

Vigilance

When Referee Squad enters, tap target creature an opponent controls and put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)

The next time a source of your choice would deal damage this turn, that damage is dealt to that source's controller instead.

: Add one mana of any type that a land you control could produce.

As Reflections of Littjara enters, choose a creature type.

Whenever you cast a spell of the chosen type, copy that spell. (A copy of a permanent spell becomes a token.)

When Reflector Mage enters, return target creature an opponent controls to its owner's hand. That creature's owner can't cast spells with the same name as that creature until your next turn.

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)

Enchanted creature has first strike. (It deals combat damage before creatures without first strike.)

Each player discards their hand, then draws seven cards.

Miracle (You may cast this card for its miracle cost when you draw it if it's the first card you drew this turn.)

If an opponent cast a red instant or sorcery spell this turn, you may pay rather than pay this spell's mana cost.

Prevent the next 3 damage that a source of your choice would deal to you and/or permanents you control this turn. If damage is prevented this way, Refraction Trap deals that much damage to any target.

If an opponent controls a Swamp and you control a Forest, you may cast this spell without paying its mana cost.

Target player gains 6 life.

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

Flying

When Refurbished Familiar enters, each opponent discards a card. For each opponent who can't, you draw a card.

Target creature gets +2/+7 until end of turn. Untap it.

Trample

When Regal Behemoth enters, you become the monarch.

Whenever you tap a land for mana while you're the monarch, add an additional one mana of any color.

Regal Bunnicorn's power and toughness are each equal to the number of nonland permanents you control.

When Regal Force enters, draw a card for each green creature you control.

Sliver creatures you control have "When this creature enters, Slivers you control get +1/+1 until end of turn if you're the monarch. Otherwise, you become the monarch."

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)

: Regenerate enchanted creature. (The next time that creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

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

Reveal Regicide as you draft it. The player to your right chooses a color, you choose another color, then the player to your left chooses a third color.

Destroy target creature that's one or more of the colors chosen as you drafted cards named Regicide.

Partner with Krav, the Unredeemed (When this creature enters, target player may put Krav into their hand from their library, then shuffle.)

Flying

At the beginning of each end step, if your team gained life this turn, create two 1/1 white Warrior creature tokens.

Return target permanent to its owner's hand.

Flying, vigilance

Snow lands your opponents control enter tapped.

Noncreature spells your opponents cast with mana value 4 or greater cost more to cast.

Destroy all green creatures or all white creatures. They can't be regenerated. You lose 2 life for each creature that died this way.

Choose target creature. When that creature dies this turn, return a creature card from its owner's graveyard to the battlefield under the control of that creature's owner.

Haste

At the beginning of your end step, return Reinforced Ronin to its owner's hand.

Channel — , Discard Reinforced Ronin: Draw a card.

Untap all creatures you control and all creatures target opponent controls. You and that opponent each gain control of all creatures the other controls until end of turn. Those creatures gain haste until end of turn.

Counter target spell. You may cast a spell with equal or lesser mana value from your hand without paying its mana cost.

Replicate—Pay . (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.)

Reiterating Bolt deals 3 damage to target creature or planeswalker.

Defender

When Reito Sentinel enters, target player mills three cards. (They put the top three cards of their library into their graveyard.)

: Put target card from a graveyard on the bottom of its owner's library.

Counter target creature or planeswalker spell unless its controller pays . If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

You gain 6 life.

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

Fading 2 <I>(This artifact enters with two fade counters on it. At the beginning of your upkeep, remove a fade counter from it. If you can't, sacrifice it.)</I>

: You gain 2 life.

Rekindled Flame deals 4 damage to any target.

At the beginning of your upkeep, if an opponent has no cards in hand, you may return Rekindled Flame from your graveyard to your hand.

Regenerate target permanent.

Each player sacrifices an artifact, a creature, an enchantment, a land, and a planeswalker of their choice.

Fuse (You may cast one or both halves of this card from your hand.)

Create four 1/1 white Dog creature tokens.

Exile target opponent's graveyard. For each creature card exiled this way, create a 1/1 colorless Spirit creature token.

Amass Zombies 3. (Put three +1/+1 counters on an Army you control. It's also a Zombie. If you don't control an Army, create a 0/0 black Zombie Army creature token first.)

Menace (This creature can't be blocked except by two or more creatures.)

When Relentless Dead dies, you may pay . If you do, return it to its owner's hand.

When Relentless Dead dies, you may pay . If you do, return another target Zombie creature card with mana value X from your graveyard to the battlefield.

Reveal the top four cards of your library. You may put a creature card and/or a land card from among them into your hand. Put the rest into your graveyard.

Relentless Rats gets +1/+1 for each other creature on the battlefield named Relentless Rats.

A deck can have any number of cards named Relentless Rats.

As an additional cost to cast this spell, exile a creature card from your graveyard.

Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)