When Rotting Rats enters, each player discards a card.

Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Reach

, Exile a creature card from your graveyard: Create a 1/2 green Spider creature token with reach, then each opponent loses 1 life for each Spider you control.

Enchant creature

When Rousing Read enters, draw two cards, then discard a card.

Enchanted creature gets +1/+1 and has flying.

When Roving Harper enters, draw a card.

+2: During target player's next turn, each creature that player controls attacks if able.

−2: Rowan Kenrith deals 3 damage to each tapped creature target player controls.

−8: Target player gets an emblem with "Whenever you activate an ability that isn't a mana ability, copy it. You may choose new targets for the copy."

Partner with Will Kenrith

Rowan Kenrith can be your commander.

Bargain (You may sacrifice an artifact, enchantment, or token as you cast this spell.)

If this spell was bargained, look at the top four cards of your library, then put up to two of them back on top of your library in any order and the rest into your graveyard.

You draw two cards and you lose 2 life.

: Destroy target tapped creature.

Destroy target land. Scry 2.

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Whenever Rubblebelt Raiders attacks, put a +1/+1 counter on it for each attacking creature you control.

You may choose not to untap Rubinia Soulsinger during your untap step.

: Gain control of target creature for as long as you control Rubinia and Rubinia remains tapped.

Haste (This creature can attack and as soon as it comes under your control.)

Whenever Ruby attacks while you control a creature with power 4 or greater, Ruby gets +2/+2 until end of turn.

: Add or .

Flying

Whenever a player casts a spell, they lose 1 life for each spell they've cast this turn.

: Add .

, : Add , , or .

At the beginning of combat on your turn, choose an opponent at random. Ruhan of the Fomori attacks that player this combat if able.

Landfall — Whenever a land you control enters, each opponent mills three cards. (To mill a card, a player puts the top card of their library into their graveyard.)

Menace

When Ruin Grinder dies, each player may discard their hand and draw seven cards.

Mountaincycling (, Discard this card: Search your library for a Mountain card, reveal it, put it into your hand, then shuffle.)

When you cast this spell, you may put a card an opponent owns from exile into that player's graveyard. If you do, you gain 5 life.

Deathtouch

When Ruin Rat dies, exile target card from an opponent's graveyard.

Devoid (This card has no color.)

Ingest (Whenever this creature deals combat damage to a player, that player exiles the top card of their library.)

Other colorless creatures you control get +1/+0.

, Sacrifice Ruinous Gremlin: Destroy target artifact.

Whenever Ruinous Minotaur deals damage to an opponent, sacrifice a land.

Destroy all nonland permanents your opponents control.

Ruins of Trokair enters tapped.

: Add .

, Sacrifice Ruins of Trokair: Add .

As Rukarumel, Biologist enters, choose a creature type.

Slivers you control and nontoken creatures you control are the chosen type in addition to their other creature types. The same is true for creature spells you control and creature cards you own that aren't on the battlefield.

, : Create a 1/1 colorless Sliver creature token.

Whenever you cast a kicked spell, you may have Rumbling Aftershocks deal damage to any target equal to the number of times that spell was kicked.

At the beginning of your upkeep, you may put a verse counter on Rumbling Crescendo.

, Sacrifice Rumbling Crescendo: Destroy up to X target lands, where X is the number of verse counters on Rumbling Crescendo.

When Rumbling Ruin enters, count the number of +1/+1 counters on creatures you control. Creatures your opponents control with power less than or equal to that number can't block this turn.

At the beginning of your upkeep, Rumbling Slum deals 1 damage to each player.

: Surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

One or two target creatures each gain haste until end of turn. They can't be blocked this turn except by creatures with haste.

Escape—, Exile four other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)

Whenever you cast a creature spell with mana value 5 or greater, that creature enters with X additional +1/+1 counters on it, where X is its mana value minus 4.

Creatures you control with three or more +1/+1 counters on them have haste.

: Add .

Whenever you cast a red spell, if Runaway Steam-Kin has fewer than three +1/+1 counters on it, put a +1/+1 counter on Runaway Steam-Kin.

Remove three +1/+1 counters from Runaway Steam-Kin: Add .

Enchant permanent

When Rune of Might enters, draw a card.

As long as enchanted permanent is a creature, it gets +1/+1 and has trample.

As long as enchanted permanent is an Equipment, it has "Equipped creature gets +1/+1 and has trample."

: The next time an artifact source of your choice would deal damage to you this turn, prevent that damage.

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

: The next time a blue source of your choice would deal damage to you this turn, prevent that damage.

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

: The next time a land source of your choice would deal damage to you this turn, prevent that damage.

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

: The next time a white source of your choice would deal damage to you this turn, prevent that damage.

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

Equipped creature has first strike and gets +X/+0, where X is the number of instant and sorcery cards in your graveyard.

Equip

Equipped creature gets +1/+1 and is every creature type.

Equip

Flying

, Exile Runehorn Hellkite from your graveyard: Each player discards their hand, then draws seven cards.

Prevent all damage that would be dealt to creatures you control.

Whenever an opponent activates an ability of a creature or land that isn't a mana ability, you may draw a card.

Kicker (You may pay an additional as you cast this spell.)

Destroy target tapped creature. If this spell was kicked, scry 2.

Rupture Spire enters tapped.

When Rupture Spire enters, sacrifice it unless you pay .

: Add one mana of any color.

Vigilance, reach

Ruric Thar, the Unbowed attacks each combat if able.

Whenever a player casts a noncreature spell, Ruric Thar deals 6 damage to that player.

Tap target creature. It doesn't untap during its controller's next untap step.

Awaken 3— (If you cast this spell for , also put three +1/+1 counters on target land you control and it becomes a 0/0 Elemental creature with haste. It's still a land.)

Target creature gets +1/+0 and gains lifelink and indestructible until end of turn. (Damage dealt by that creature also causes its controller to gain that much life, and it can't be destroyed by damage or effects that say "destroy.")

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

Return target nonland permanent to its owner's hand. If this spell was kicked, return another target nonland permanent to its owner's hand.