Pterodon Knight has flying as long as you control a Dinosaur.

, : Create a 0/1 blue Homunculus artifact creature token.

At the beginning of your upkeep, sacrifice a Homunculus.

Whenever an Equipment enters the battlefield under your control, you may draw a card.

Metalcraft — Equipment you control have equip as long as you control three or more artifacts.

, , Sacrifice another creature: Manifest the top card of your library. (Put that card onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.)

Magecraft — Whenever you cast or copy an instant or sorcery spell, look at the top three cards of your library. You may reveal a land card from among them and put that card into your hand. Put the rest on the bottom of your library in any order.

Deathtouch, haste

When Queen Marchesa enters the battlefield, you become the monarch.

At the beginning of your upkeep, if an opponent is the monarch, create a 1/1 black Assassin creature token with deathtouch and haste.

Whenever you cast a spell that's white, blue, black, or red, put a +1/+1 counter on Questing Druid.

When Quicksmith Rebel enters the battlefield, target artifact you control gains ": This artifact deals 2 damage to any target" for as long as you control Quicksmith Rebel.

Whenever Radha's Firebrand attacks, target creature defending player controls with power less than Radha's Firebrand's power can't block this turn.

Domain — : Radha's Firebrand gets +2/+2 until end of turn. This ability costs less to activate for each basic land type among lands you control. Activate only once each turn.

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

When Radiant's Dragoons enters the battlefield, you gain 5 life.

Whenever you cast an instant or sorcery spell, you may tap two untapped creatures you control. If you do, draw a card.

: Creatures you control get +1/+1 and gain vigilance until end of turn.

When Raffine's Silencer 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.)

When Raffine's Silencer dies, target creature an opponent controls gets -X/-X until end of turn, where X is Raffine's Silencer's power.

, : Exile up to three target cards from a single graveyard.

Tap target creature. It doesn't untap during its controller's next untap step. (Then exile this card. You may cast the creature later from exile.)

: Target black or green creature gains haste until end of turn. (It can attack and this turn.)

At the beginning of your end step, if you discarded a card this turn, transform Ragged Recluse.

First strike

When Rahilda, Wanted Cutthroat deals combat damage to a player, exile a nonland card from their library at random. During any turn you attacked with a Wolf or Werewolf, you may cast that card and you may spend mana as though it were mana of any color to cast that spell.

Daybound (If a player casts no spells during their own turn, it becomes night next turn.)

First strike

: Reveal your hand and discard a card of target opponent's choice. Then that player reveals their hand and discards a card of your choice. Activate only as a sorcery.

Haste

Haste

, : Create a 3/1 red Elemental creature token with haste.

When Ramirez DePietro, Pillager enters the battlefield, you lose 2 life and create two Treasure tokens.

Whenever one or more Pirates you control deal combat damage to a player, exile the top card of that player's library. You may cast that card for as long as it remains exiled.

, : Search your library for a Rebel permanent card with mana value 5 or less, put it onto the battlefield, then shuffle.

, : Return target Rebel permanent card with mana value 5 or less from your graveyard to the battlefield.

Flying

, : Search your library for a Rebel permanent card with mana value 6 or less, put it onto the battlefield, then shuffle.

Deathtouch

Other Assassins you control get +1/+1.

Whenever a player loses the game, if they were attacked this turn by an Assassin you controlled, you win the game.

When Ranger of Eos enters the battlefield, you may search your library for up to two creature cards with mana value 1 or less, reveal them, put them into your hand, then shuffle.

Vigilance

When Rangers of Ithilien enters the battlefield, gain control of up to one target creature with lesser power for as long as you control Rangers of Ithilien. Then the Ring tempts you.

Each creature you control assigns combat damage equal to its toughness rather than its power.

Whenever Rasaad yn Bashir attacks, if you have the initiative, double the toughness of each creature you control until end of turn.

Choose a Background (You can have a Background as a second commander.)

Reach (This creature can block creatures with flying.)

Whenever Rashka the Slayer blocks one or more black creatures, Rashka gets +1/+2 until end of turn.

When Rasputin, the Oneiromancer enters the battlefield, put a dream counter on it for each opponent you have. Each opponent creates a 1/1 red Goblin creature token.

, Remove one or more dream counters from Rasputin: Add that much .

, Remove a dream counter from Rasputin: Create a 2/2 white Knight creature token with protection from red.

, : Tap target creature.

When Ravaging Horde enters the battlefield, destroy target land.

Whenever Raven Guild Master deals combat damage to a player, that player exiles the top ten cards of their library.

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

Flying

Other creatures you control get +1/+1.

At the beginning of your upkeep, you may return target creature card from your graveyard to your hand.

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

Whenever you cast your second spell each turn, put a +1/+1 counter on Razzle-Dazzler. It can't be blocked this turn.

Rebel Informer can't be the target of white spells or abilities from white sources.

: Put target nontoken Rebel on the bottom of its owner's library.

Reckless Cohort attacks each combat if able unless you control another Ally.

Whenever an artifact enters the battlefield under your control, Reckless Fireweaver deals 1 damage to each opponent.

: Target player draws a card, then discards a card.

At the beginning of each upkeep, if no spells were cast last turn, transform Reckless Waif.

Reclusive Taxidermist gets +3/+2 as long as there are four or more creature cards in your graveyard.

: Add one mana of any color.

: Look at the top four cards of your library. You may reveal a creature card with mana value 3 or less from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

When Reflector Mage enters the battlefield, return target creature an opponent controls to its owner's hand. That creature's owner can't cast spells with the same name as that creature until your next turn.

Whenever you cast a legendary spell, draw a card.

When Relentless Rohirrim enters the battlefield, the Ring tempts you.

Renown 1 (When this creature deals combat damage to a player, if it isn't renowned, put a +1/+1 counter on it and it becomes renowned.)

When Relic Seeker becomes renowned, you may search your library for an Equipment card, reveal it, put it into your hand, then shuffle.

Flying, haste

If a spell would deal damage to you or another permanent you control, prevent that damage.

If a spell would deal damage to an opponent or a permanent an opponent controls, it deals that much damage plus 1 instead.

Revolt — When Renegade Rallier enters the battlefield, if a permanent you controlled left the battlefield this turn, return target permanent card with mana value 2 or less from your graveyard to the battlefield.

First strike

Whenever Renegade Warlord attacks, each other attacking creature gets +1/+0 until end of turn.

, Sacrifice Renowned Weaver: Create a 1/3 green Spider enchantment creature token with reach. (It can block creatures with flying.)