msem-instigator

Flying

Reason Rots, Rage Remains deals X damage to any target.
Reconstruct {X}{R}{R} (You may cast this from your graveyard for its reconstruct cost reduced by the mana value of a permanent you sacrifice as you cast it this way. Then exile this.)

When Rethia Cultivator enters, you may search your library for a land card, reveal it, put it into your hand, then shuffle.

Flying
Whenever Revived Pterosaur deals combat damage to an opponent, that player discards a card.
{4}{B}{B}, Discard two cards: Return Revived Pterosaur from your graveyard to the battlefield tapped.

This spell costs {1} less to cast for each artifact and enchantment you control.
Reveal the top seven cards of your library. Put any number of noncreature, nonland cards from among them into your hand and the rest of the revealed cards into your graveyard.

Flying
Whenever Rimebreath Tyrant attacks, you may discard a card. When you do, tap target creature. It doesn't untap during its controller's next untap step.

Flying
When Rimecraft Owl enters, you may put an Aura card with mana value 3 or less from your hand or graveyard onto the battlefield attached to Rimecraft Owl or target creature an opponent controls that Aura could enchant.

Return target permanent to its owner's hand.
Coalesce {7}{U} (You may cast this from your graveyard for {7}{U}. If you do, it enters as a Horror creature after it resolves. Exile it if it would leave the battlefield or not resolve.)

Artifact and enchantment spells you cast cost {1} less to cast.
Whenever Risti Salvager attacks, rediscover an artifact or enchantment card. (Look at the top card of your library. You may reveal it and put it into your hand if it's an artifact or enchantment card. Otherwise, put it back or into your graveyard.)

Whenever Roaring Illusion attacks alone, for each other creature you control, create a token that's a copy of that creature and that's tapped and attacking. Exile those tokens at the beginning of the next end step.

If a creature an opponent controls would die, exile it instead.
Whenever Rocket Poacher deals combat damage to a player, put a card exiled with it onto the battlefield under your control.

Flying
If a +1/+1 counter would be put on a creature you control, you may instead put your choice of a flying counter, a vigilance counter, or a trample counter on it.

({T}: Add {R} or {W}.)
Rugged Fields enters tapped.
Cycling {2} ({2}, Discard this card: Draw a card.)

{T}: Add {C}.
{T}: Add {C} for each six cards in your graveyard.

({T}: Add {B} or {R}.)
Ruined Shrine enters tapped unless you control two or more basic lands.

Target creature phases out. (Treat it and anything attached to it as though they don't exist until its controller's next turn.)

Whenever Rustshell Mantis is dealt damage, put that many +1/+1 counters on it. (It must survive the damage to get the counters.)

Whenever another creature with power 4 or greater you control attacks, Ruthless Brawler deals 1 damage to defending player.

Return target creature or land card from your graveyard to your hand. You may shuffle up to three cards from your graveyard into your library.

Enchant creature
Enchanted creature has vigilance.
Whenever enchanted creature attacks or blocks, you gain 2 life.

Flying
Whenever Sandslinger attacks, you may tap target creature if you've gained life this turn.

({T}: Add {U}.)
As Saturated Dunes enters, you may pay 1 life. If you don't, Saturated Dunes enters tapped.

Harness (You may tap a creature you control as you cast this spell. If you do, reduce this spell's mana cost by that creature's power.)
Target creature gets -X/-X until end of turn.

Target creature you control gets +1/+2 until end of turn. If that creature is white, create a white Aura enchantment token with enchant creature and “Enchanted creature has first strike” attached to that creature.

Harness (You may tap a creature you control as you cast this spell. If you do, reduce this spell's mana cost by that creature's power.)
Return up to two target cards from your graveyard to your hand. Exile Secret Stash.