msem-instigator

Wanderlust — When Riftbreaker Mage dies, if you control four or more differently named lands, Riftbreaker Mage deals damage equal to its power to each opponent.

Double strike
Whenever an opponent casts a noncreature spell, Riko, the Paragon deals 2 damage to that player.
Whenever a creature you control becomes blocked, untap it.

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.

Saga spells you cast cost {1} less to cast.

First strike
Engage (This creature must be blocked each combat if able.)

Flash
When Rippling Water Arcanist enters, copy target instant or sorcery spell you control, then return it to its owner's hand. You may choose new targets for the copy.

{1}, {T}: Tap target creature. Rising Sun Ascetic deals 1 damage to that creature's controller.

Spells you cast that target Risti Operative cost {1} less to cast.
Abilities you activate that target Risti Operative cost {1} less to activate.

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.)

Reach
When Risti Watchkeeper enters, rediscover a creature card. (Look at the top card of your library. You may reveal it and put it into your hand if it's a creature card. Otherwise, put it back or into your graveyard.)

{T}: Add {C}.
{1}: Risti Workshop becomes a creature in addition to its other types until end of turn.
When Risti Workshop deals combat damage to an opponent, you may sacrifice it. If you do, search your library for a basic land card, put it onto the battlefield, then shuffle.

When Ritesinger Shaman dies, each player discards a card.

When Rixia, Rift Shunted enters, target creature can't be blocked this turn.
Whenever a creature you control deals combat damage to an opponent, you may aetherize it. (To aetherize, create a token that's a copy of it, then exile that token.)

{2}, {T}: Tap target creature.

{1}{R}: Roaring Dracowyrm gets +2/+0 until end of turn. Activate only once each turn.

Pay 3 life: Put a +1/+1 counter on target creature.

{T}, Sacrifice Rootshambler: Untap all basic lands you control.

{1}{G}, {T}, Discard a card: Another target creature you control gets +X/+X until end of turn, where X is 4 minus that creature's power.

Experience (Whenever this creature attacks, if it has fewer than three +1/+1 counters on it, put a +1/+1 counter on it.)

When Roseblood Hart enters, choose one —
• Destroy target artifact.
• Create a Treasure token.

Instant, sorcery, and enchantment spells you cast cost {1} less to cast.

Rosesworn Knight gets +1/+1 as long as it's embattled. (A creature is embattled if it has a counter on it or a permanent you control attached to it.)

When Rotting Sunseeker dies, return target creature card with power 2 or less from your graveyard to your hand.

{T}: Add {B} or {G}. You lose 1 life.

When Roving Chaplains enters, create two 1/1 white Spirit creature tokens with flying.
{W}, Tap another untapped creature you control: Tap target nonland permanent an opponent controls.