Whenever Riot Ringleader attacks, Human creatures you control get +1/+0 until end of turn.

Trample

When Riparian Tiger enters the battlefield, you get (two energy counters).

Whenever Riparian Tiger attacks, you may pay . If you do, it gets +2/+2 until end of turn.

Riphook Raider can't be blocked by creatures with power 2 or less.

Nightbound (If a player casts at least two spells during their own turn, it becomes day next turn.)

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

Flying

At the beginning of your upkeep, return an enchantment you control to its owner's hand.

Vigilance

When Riptide Crab dies, draw a card.

Whenever Riptide Entrancer deals combat damage to a player, you may sacrifice it. If you do, gain control of target creature that player controls. (This effect lasts indefinitely.)

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

Whenever Riptide Pilferer deals combat damage to a player, that player discards a card.

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

When Riptide Survivor is turned face up, discard two cards, then draw three cards.

Risen Executioner can't block.

Other Zombie creatures you control get +1/+1.

You may cast Risen Executioner from your graveyard if you pay more to cast it for each other creature card in your graveyard.

Whenever you cast a kicked spell, Risen Riptide has base power and toughness 5/5 until end of turn.

Flying

Rishadan Airship can block only creatures with flying.

When Rishadan Cutpurse enters the battlefield, each opponent sacrifices a permanent unless they pay .

When Rishadan Footpad enters the battlefield, each opponent sacrifices a permanent unless they pay .

Whenever another creature or planeswalker you control dies, put a +1/+1 counter on Rising Populace.

Flying, ward

Other Dragons you control have ward .

At the beginning of your end step, if a creature or planeswalker an opponent controlled was dealt excess damage this turn, create a 4/4 red Dragon creature token with flying.

, Sacrifice Rith's Attendant: Add .

Menace

: Add two mana in any combination of colors. Spend this mana only to cast Dragon creature spells.

Once during each of your turns, you may cast a Dragon creature spell from your graveyard.

Whenever you cast a Dragon creature spell from your graveyard, it gains "When this creature dies, exile it."

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

River Darter can't be blocked by Dinosaurs.

When River Herald Scout enters the battlefield, it explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on this creature, then put the card back or put it into your graveyard.)

: River Merfolk gains mountainwalk until end of turn. (It can't be blocked as long as defending player controls a Mountain.)

River Sneak can't be blocked.

Whenever another Merfolk enters the battlefield under your control, River Sneak gets +1/+1 until end of turn.

Whenever you cast a spell that's both blue and red, Riverfall Mimic has base power and toughness 3/3 until end of turn and can't be blocked this turn.

When Riverwise Augur enters the battlefield, draw three cards, then put two cards from your hand on top of your library in any order.

: Riveteers Initiate gains deathtouch until end of turn.

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.)

: Target blocking creature gets -1/-1 until end of turn.

: Target player who lost life this turn loses 1 life.

Flying, trample

When Roalesk, Apex Hybrid enters the battlefield, put two +1/+1 counters on another target creature you control.

When Roalesk dies, proliferate, then proliferate again. (Choose any number of permanents and/or players, then give each another counter of each kind already there. Then do it again.)

Ward

As Roaming Throne enters the battlefield, choose a creature type.

Roaming Throne is the chosen type in addition to its other types.

If a triggered ability of another creature you control of the chosen type triggers, it triggers an additional time.

Whenever Roaring Slagwurm attacks, tap all artifacts.

Vigilance

Robaran Mercenaries has all activated abilities of all legendary creatures you control.

Reach, haste

Whenever Robber of the Rich attacks, if defending player has more cards in hand than you, exile the top card of their library. During any turn you attacked with a Rogue, you may cast that card and you may spend mana as though it were mana of any color to cast that spell.

Robobrain War Mind's power is equal to the number of cards in your hand.

When Robobrain War Mind enters the battlefield, you get an amount of (energy counters) equal to the number of artifact creatures you control.

Whenever Robobrain War Mind attacks, you may pay . If you do, draw a card.

Flying

Whenever Roc Charger attacks, target attacking creature without flying gains flying until end of turn.

Roc Hatchling enters the battlefield with four shell counters on it.

At the beginning of your upkeep, remove a shell counter from Roc Hatchling.

As long as Roc Hatchling has no shell counters on it, it gets +3/+2 and has flying.

Flying

At the beginning of your end step, each player exiles the top card of their library. Until your next end step, each player may play the card they exiled this way.

Whenever a player plays a land from exile or casts a spell from exile, you put a +1/+1 counter on target creature and create a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

Whenever Rock Basilisk blocks or becomes blocked by a non-Wall creature, destroy that creature at end of combat.

You can't cast this spell if you've played a land this turn.

You can't play lands if you've cast Rock Jockey this turn.

Reach

When Rock Star enters the battlefield, you may discard a card. If you do, reveal the top five cards of your library. Ask a person outside the game to choose which of them is most like a rock band. Put that card into your hand and the rest on the bottom of your library in a random order.

Double strike (This creature deals both first-strike and regular combat damage.)

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

Whenever you cast an instant, sorcery, or Wizard spell, Rockslide Sorcerer deals 1 damage to any target.

Flying, deathtouch, lifelink

Whenever you gain life, Rodolf Duskbringer gains indestructible until end of turn.

At the beginning of your end step, you may pay . When you do, return target creature card with mana value X or less from your graveyard to the battlefield, where X is the amount of life you gained this turn.

First strike, menace, trample

Partner (You can have two commanders if both have partner.)

Whenever Rogue Kavu attacks alone, it gets +2/+0 until end of turn.

Flying

At the beginning of your upkeep, put a wage counter on Rogue Skycaptain. You may pay for each wage counter on it. If you don't, remove all wage counters from Rogue Skycaptain and an opponent gains control of it.

Other Kobolds you control get +2/+2.

Whenever you cast a Kobold spell, you may pay . If you do, create a 4/4 red Dragon creature token with flying.

Whenever you cast a Dragon spell, create a 0/1 red Kobold creature token named Kobolds of Kher Keep.

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

When Rohirrim Lancer dies, the Ring tempts you.