Flash

When Rescue Retriever enters the battlefield, put a +1/+1 counter on each other Soldier you control.

Prevent all damage that would be dealt to other attacking Soldiers you control.

When Reservoir Walker enters the battlefield, you gain 3 life and get (three energy counters).

Whenever a permanent you control leaves the battlefield, if it had counters on it, put those counters on target permanent you control.

: Move any number of counters from target permanent you control to another target permanent you control.

Flying

When Resplendent Marshal enters the battlefield or dies, you may exile another creature card from your graveyard. When you do, put a +1/+1 counter on each creature you control other than Resplendent Marshal that shares a creature type with the exiled card.

Restless Bivouac enters the battlefield tapped.

: Add or .

: Restless Bivouac becomes a 2/2 red and white Ox creature until end of turn. It's still a land.

Whenever Restless Bivouac attacks, put a +1/+1 counter on target creature you control.

Flying

Whenever a source an opponent controls deals damage to you, you may put that many +1/+1 counters on Retaliator Griffin.

Landfall — Whenever a land enters the battlefield under your control, choose one —

• Put a +1/+1 counter on target creature.

• You gain 2 life.

, Remove X +1/+1 counters from among creatures you control: Target creature gets -X/-X until end of turn.

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

When Revel Ruiner enters the battlefield, it connives. (Draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on this creature.)

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

When Revered Unicorn leaves the battlefield, you gain life equal to the number of age counters on it.

Choose one —

• Counter all other spells.

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

• Creatures can't be blocked this turn.

Counter target spell. Untap up to four lands.

Reyhan, Last of the Abzan enters the battlefield with three +1/+1 counters on it.

Whenever a creature you control dies or is put into the command zone, if it had one or more +1/+1 counters on it, you may put that many +1/+1 counters on target creature.

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

Partner with Timin, Youthful Geist (When this creature enters the battlefield, target player may put Timin into their hand from their library, then shuffle.)

Vigilance

Whenever a creature an opponent controls becomes tapped, if it isn't being declared as an attacker, put a +1/+1 counter on Rhoda, Geist Avenger.

Rhox Pummeler enters the battlefield with a shield counter on it. (If it would be dealt damage or destroyed, remove a shield counter from it instead.)

Rhox Pummeler has trample as long as it has a shield counter on it.

Toxic 2 (Players dealt combat damage by this creature also get two poison counters.)

When Ribskiff enters the battlefield, draw a card.

Crew 3 (Tap any number of creatures you control with total power 3 or more: This Vehicle becomes an artifact creature until end of turn.)

When Ridgescale Tusker enters the battlefield, put a +1/+1 counter on each other creature you control.

, Remove a time counter from a permanent you control or suspended card you own: Rift Elemental gets +2/+0 until end of turn.

Protection from black; flanking <I>(Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.)</I>

Suspend 3—

When the last time counter is removed from Riftmarked Knight while it's exiled, create a 2/2 black Knight creature token with flanking, protection from white, and haste.

First strike

Raid — Rigging Runner enters the battlefield with a +1/+1 counter on it if you attacked this turn.

Whenever you cast a modal spell, choose up to X, where X is the number of times you chose a mode for that spell —

• Exile the top card of your library. Until the end of your next turn, you may play it.

• Put a +1/+1 counter on Riku of Many Paths. It gains trample until end of turn.

• Create a 1/1 blue Bird creature token with flying.

Flying

: Tap target creature and put an ice counter on it. ( can be paid with one mana from a snow source.)

Creatures with ice counters on them don't untap during their controllers' untap steps.

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

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

Ring of Three Wishes enters the battlefield 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.)

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.

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

Riptide Replicator enters the battlefield 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.

This spell can't be countered.

Destroy target permanent. Target player draws four cards. Take an extra turn after this one.

Exile Rise of the Eldrazi.

All creatures get -2/-2 until end of turn.

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.)

Haste

Whenever Risona, Asari Commander deals combat damage to a player, if it doesn't have an indestructible counter on it, put an indestructible counter on it.

Whenever combat damage is dealt to you, remove an indestructible counter from Risona.

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

Discard any number of cards. Counter target spell unless its controller pays for each card discarded this way.

River Delta doesn't untap during your untap step if it has a depletion counter on it.

At the beginning of your upkeep, remove a depletion counter from River Delta.

: Add or . Put a depletion counter on River Delta.

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.)

Whenever River Kelpie or another permanent enters the battlefield from a graveyard, draw a card.

Whenever a player casts a spell from a graveyard, draw a card.

Persist (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.)

When Riveting Rigger enters the battlefield, 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.)

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.)

I — Create two 3/3 green Dinosaur creature tokens.

II — Roar of the Fifth People gains "Creatures you control have ‘: Add , , or .'"

III — Search your library for a Dinosaur card, reveal it, put it into your hand, then shuffle.

IV — Dinosaurs you control gain double strike and trample until end of turn.

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.

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.

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.

Roiling Horror's power and toughness are each equal to your life total minus the life total of an opponent with the most life.

Suspend X—. X can't be 0. (Rather than cast this card from your hand, you may pay and exile it with X 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.)

Whenever a time counter is removed from Roiling Horror while it's exiled, target player loses 1 life and you gain 1 life.

This spell can't be countered.

Sliver spells can't be countered.

Rose Tyler gets +1/+1 for each time counter on it.

Bad Wolf — Whenever Rose Tyler attacks, put a time counter on it for each suspended card you own and each other permanent you control with a time counter on it.

Doctor's companion (You can have two commanders if the other is the Doctor.)

Whenever another creature you control dies, put a +1/+1 counter on Rot Shambler.

Rotating Fireplace enters the battlefield tapped with a time counter on it.

: Add an amount of equal to the number of time counters on Rotating Fireplace.

, : Time travel. Activate only as a sorcery. (For each suspended card you own and each permanent you control with a time counter on it, you may add or remove a time counter.)

Add for each card in target opponent's hand. Until end of turn, you don't lose this mana as steps and phases end. Exile Rousing Refrain with three time counters on it.

Suspend 3— (Rather than cast this card from your hand, you may pay and exile it with three 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.)

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Whenever a Swamp, Mountain, black permanent, or red permanent becomes tapped, Royal Decree deals 1 damage to that permanent's controller.

When Rubblebelt Maverick enters the battlefield, surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

, Exile Rubblebelt Maverick from your graveyard: Put a +1/+1 counter on target creature. Activate only as a sorcery.