Trample

Whenever Rimehorn Aurochs attacks, it gets +1/+0 until end of turn for each other attacking Aurochs.

: Target creature blocks target creature this turn if able. ( can be paid with one mana from a snow source.)

, : Counter target activated ability. Activate only if you control four or more snow permanents. (Mana abilities can't be targeted.)

(: Add or .)

Rimewood Falls enters tapped.

: Equipped creature gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

At the beginning of your upkeep, put a +1/+1 counter on equipped creature if it's blue.

Equip (: Attach to target creature you control. Equip only as a sorcery.)

, : Counter target instant or Aura spell that targets a permanent you control.

, , Exile Ring of Ma'rûf: The next time you would draw a card this turn, instead put a card you own from outside the game into your hand.

Ring of Three Wishes enters with three wish counters on it.

, , Remove a wish counter from Ring of Three Wishes: Search your library for a card, put that card into your hand, then shuffle.

Equipped creature has haste. (It can attack and no matter when it came under your control.)

At the beginning of your upkeep, put a +1/+1 counter on equipped creature if it's red.

Equip (: Attach to target creature you control. Equip only as a sorcery.)

Equipped creature gets +1/+2.

Equip (: Attach to target creature you control. Equip only as a sorcery.)

, Sacrifice Riptide Chronologist: Untap all creatures of the creature type of your choice.

: Add .

, : Return target Wizard you control to its owner's hand.

As Riptide Replicator enters, choose a color and a creature type.

Riptide Replicator enters with X charge counters on it.

, : Create an X/X creature token of the chosen color and type, where X is the number of charge counters on Riptide Replicator.

When Rise of the Hobgoblins enters, you may pay . If you do, create X 1/1 red and white Goblin Soldier creature tokens.

: Red creatures and white creatures you control gain first strike until end of turn.

, : Shuffle target nontoken permanent you control into its owner's library.

When Rishkar, Peema Renegade enters, put a +1/+1 counter on each of up to two target creatures.

Each creature you control with a counter on it has ": Add ."

When Rith's Grove enters, sacrifice it unless you return a non-Lair land you control to its owner's hand.

: Add , , or .

: Add .

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

: Regenerate River Boa.

Flying

: You gain 2 life and draw a card.

: Add . If you played a land this turn, add instead.

: Add .

When Riveteers Requisitioner dies, create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Blitz (If you cast this spell for its blitz cost, it gains haste and "When this creature dies, draw a card." Sacrifice it at the beginning of the next end step.)

: Add .

, : Each player discards a card. Activate only as a sorcery.

: Add .

, , Sacrifice Roadside Reliquary: Draw a card if you control an artifact. Draw a card if you control an enchantment.

Landfall — Whenever a land you control enters, put a +1/+1 counter on target creature or Vehicle you control.

Channel — , Discard Roaring Earth: Put X +1/+1 counters on target land you control. It becomes a 0/0 green Spirit creature with haste. It's still a land.

At the beginning of each end step, if an artifact entered the battlefield under your control this turn,

Augment (, Reveal this card from your hand: Combine it with target host. Augment only as a sorcery.)

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

For each 1 damage that would be dealt to Rock Hydra, if it has a +1/+1 counter on it, remove a +1/+1 counter from it and prevent that 1 damage.

: Prevent the next 1 damage that would be dealt to Rock Hydra this turn.

: Put a +1/+1 counter on Rock Hydra. Activate only during your upkeep.

: Rocket Launcher deals 1 damage to any target. Destroy Rocket Launcher at the beginning of the next end step. Activate only if you've controlled Rocket Launcher continuously since the beginning of your most recent turn.

Rockfall Vale enters tapped unless you control two or more other lands.

: Add or .

Whenever a player casts an instant or sorcery spell, exile it instead of putting it into a graveyard as it resolves.

, , Sacrifice Rod of Absorption: You may cast any number of spells from among cards exiled with Rod of Absorption with total mana value X or less without paying their mana costs.

, : Rod of Spanking deals 1 damage to target player. Then untap Rod of Spanking unless that player says "Thank you, sir. May I have another?"

(Gain the next level as a sorcery to add its ability.)

Whenever a creature you control deals combat damage to a player, exile the top card of that player's library face down. You may look at it for as long as it remains exiled.

: Level 2

//Level_2//

Creatures you control have menace.

: Level 3

//Level_3//

You may play cards exiled with Rogue Class, and you may spend mana as though it were mana of any color to cast those spells.

: Add .

, : Target creature can't be blocked this turn.

At the beginning of each player's upkeep, Roiling Vortex deals 1 damage to them.

Whenever a player casts a spell, if no mana was spent to cast that spell, Roiling Vortex deals 5 damage to that player.

: Your opponents can't gain life this turn.

When Rona, Disciple of Gix enters, you may exile target historic card from your graveyard. (Artifacts, legendaries, and Sagas are historic.)

You may cast spells from among cards exiled with Rona.

, : Exile the top card of your library.

Equipped creature gets +2/+1.

Whenever a creature you control enters, attach Ronin Warclub to that creature.

Equip (: Attach to target creature you control. Equip only as a sorcery.)

: Roofstalker Wight gains flying until end of turn.

, , Sacrifice Root Greevil: Destroy all enchantments of the color of your choice.

Rootbound Crag enters tapped unless you control a Mountain or a Forest.

: Add or .

, Return Rootha, Mercurial Artist to its owner's hand: Copy target instant or sorcery spell you control. You may choose new targets for the copy.

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.)

Tap two untapped creatures you control: Root-Kin Ally gets +2/+2 until end of turn.

, Sacrifice Rootrunner: Put target land on top of its owner's library.

Soulshift 3 (When this creature dies, you may return target Spirit card with mana value 3 or less from your graveyard to your hand.)

Sacrifice a Forest: Regenerate Rootwater Alligator.

, Sacrifice Rootwater Diver: Return target artifact card from your graveyard to your hand.

: Gain control of target creature for as long as that creature is enchanted.

: Rootwater Thief gains flying until end of turn.

Whenever Rootwater Thief deals combat damage to a player, you may pay . If you do, search that player's library for a card and exile it, then the player shuffles.

Equipped creature gets +1/+2, has reach, and can't be blocked by more than one creature.

, Sacrifice Rope: Draw a card.

Equip

First strike

Raid — At end of combat on your turn, if you attacked this turn, create a Junk token for each opponent you attacked. (It's an artifact with ", Sacrifice this artifact: Exile the top card of your library. You may play that card this turn. Activate only as a sorcery.")

Whenever you sacrifice a Junk, add .

When Rosethorn Halberd enters, attach it to target non-Human creature you control.

Equipped creature gets +2/+1.

Equip (: Attach to target creature you control. Equip only as a sorcery.)

When Rosheen, Roaring Prophet enters, mill six cards. You may put a card with in its mana cost from among them into your hand.

: Reveal any number of cards with in their mana cost in your hand. Add for each card revealed this way. Spend this mana only on costs that contain .