Prevent all combat damage that would be dealt this turn. You may look at each face-down creature that's attacking or blocking.

When Reverent Hunter enters, put a number of +1/+1 counters on it equal to your devotion to green. (Each in the mana costs of permanents you control counts toward your devotion to green.)

Choose one —

• Counter all other spells.

• Switch each creature's power and toughness until end of turn.

• Creatures can't be blocked this turn.

You gain 3 life.

Draw a card.

Enchant creature

Enchanted creature can't attack, block, or crew Vehicles.

Whenever Rex, Cyber-Hound deals combat damage to a player, they mill two cards and you get (two energy counters).

Pay : Choose target creature card in a graveyard. Exile it with a brain counter on it. Activate only as a sorcery.

Rex has all activated abilities of all cards in exile with brain counters on them.

You may exert Rhet-Crop Spearmaster as it attacks. When you do, it gets +1/+0 and gains first strike until end of turn. (An exerted creature won't untap during your next untap step.)

Green creature spells you cast cost less to cast.

Whenever you cast a creature spell, target creature you control gets +2/+2 and gains trample until end of turn.

Trample, haste

Whenever an equipped creature you control other than Rhuk, Hexgold Nabber attacks or dies, you may attach all Equipment attached to that creature to Rhuk.

: Tap target creature unless its controller pays .

Whenever an opponent casts a spell, you may draw a card unless that player pays .

Creature spells you control can't be countered.

Nontoken creatures you control have riot. (They enter with your choice of a +1/+1 counter or haste.)

Flying

: Ribbon Snake loses flying until end of turn. Any player may activate this ability.

Whenever a creature attacks you or a planeswalker you control, that creature's controller mills two cards.

Create a 2/2 white Knight creature token with vigilance. (Then exile this card. You may cast the creature later from exile.)

Target creature gets +3/+3 and gains horsemanship until end of turn. (It can't be blocked except by creatures with horsemanship.)

Rielle, the Everwise gets +1/+0 for each instant and sorcery card in your graveyard.

Whenever you discard one or more cards for the first time each turn, draw that many cards.

: Add one mana of any color.

Suspend 2— (Rather than cast this card from your hand, you may pay and exile it with two time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost. It has haste.)

Creatures you control get +2/+2 until end of turn.

Flying

Whenever another Angel or Cleric you control enters, you gain life equal to that creature's toughness.

As long as you have at least 7 life more than your starting life total, creatures you control get +2/+2.

Rigo, Streetwise Mentor enters with a shield counter on it. (If it would be dealt damage or destroyed, remove a shield counter from it instead.)

Whenever you attack a player or planeswalker with one or more creatures with power 1 or less, draw a card.

Ward

When Rimewall Protector enters the battlefield, each other Giant or Wizard you control and each Giant or Wizard card in your hand perpetually gains ward .

Whenever you activate an ability, if it isn't a mana ability, you may pay . If you do, copy that ability. You may choose new targets for the copy.

You gain 1 life for each creature your opponents control. Prevent all damage that would be dealt to you this turn.

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

Flying

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

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.)

Create X 2/2 black Zombie Berserker creature tokens, where X is the number of nontoken creatures that died this turn.

Foretell (During your turn, you may pay and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

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

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

Creatures you control have haste.

Legendary creatures you control get +1/+0.

Target opponent may have Risk Factor deal 4 damage to them. If that player doesn't, you draw three cards.

Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this card.)

Whenever a creature you control is dealt damage, put a +1/+1 counter on it. (It must survive the damage to get the counter.)

Choose one —

• Destroy target nonbasic land.

• Create three 1/1 green Saproling creature tokens.

• Prevent all damage a source of your choice would deal this turn.

Coven — At the beginning of combat on your turn, if you control three or more creatures with different powers, Ritual Guardian gains lifelink until end of turn.

Enchant creature

When Ritual of Steel enters, draw a card at the beginning of the next turn's upkeep.

Enchanted creature gets +0/+2.

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."

Vigilance

When River Herald Guide enters, 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.)

Meet in Reverse — You draw cards from the bottom of your library rather than the top.

Spoilers — Whenever an opponent scries, surveils, or searches their library, put a +1/+1 counter on River Song. Then River Song deals damage to that player equal to its power.

Whenever you sacrifice a creature, you may return target creature card with lesser mana value from your graveyard to the battlefield tapped. Do this only once each turn.

When Riveting Rigger enters, you may sacrifice another artifact. If you do, put two +1/+1 counters on Riveting Rigger and it assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)

All creatures able to block target creature this turn do so.

Ferocious — That creature gains indestructible until end of turn if you control a creature with power 4 or greater.

Flying

Whenever Robber Fly becomes blocked, defending player discards all the cards in their hand, then draws that many cards.

When Robo-Piñata dies, choose one —

• You get .

• You may put a sticker on a nonland permanent you own.

Defender (This creature can't attack.)

When Roc Egg dies, create a 3/3 white Bird creature token with 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.")

First strike

Whenever another creature dies, you may put a +1/+1 counter on Rockslide Elemental.

When Rogue Refiner enters, draw a card and you get (two energy counters).

For each color, return up to one target creature card of that color from your graveyard to your hand.

Sacrifice a land. Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.