15 more formats
Confidence:StrongSolidPlausibleTentativeSpeculative
- SorceryB
Reanimate puts Rem Karolus, Stalwart Slayer onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
- SorceryW
Helping Hand puts Rem Karolus, Stalwart Slayer onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
- SorceryB
Unearth puts Rem Karolus, Stalwart Slayer onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
- Creature — Troll Warlock // SorceryB
Grave Researcher puts Rem Karolus, Stalwart Slayer onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
- SorceryBW
Can't Stay Away puts Rem Karolus, Stalwart Slayer onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
- Creature — Human WarlockBW
Priest of Fell Rites puts Rem Karolus, Stalwart Slayer onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
- Legendary Planeswalker — ChandraR
Chandra, Flamecaller deals damage to many targets, fueling Rem Karolus, Stalwart Slayer's damage-payoff trigger.
- SorceryB
Resistance Is Futile puts Rem Karolus, Stalwart Slayer onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
- Enchantment — AuraB
Animate Dead puts Rem Karolus, Stalwart Slayer onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
- 1BSorceryB
Exhume puts Rem Karolus, Stalwart Slayer onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
- SorceryW
Return Triumphant puts Rem Karolus, Stalwart Slayer onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
- SorceryR
Let the Galaxy Burn deals damage to many targets, fueling Rem Karolus, Stalwart Slayer's damage-payoff trigger.
- SorceryR
Chain Reaction deals damage to many targets, fueling Rem Karolus, Stalwart Slayer's damage-payoff trigger.
- Legendary Creature — Alien Human HeroR
Jack of Hearts, Volatile Hero deals damage to many targets, fueling Rem Karolus, Stalwart Slayer's damage-payoff trigger.
- Sorcery // SorceryBG
Life puts Rem Karolus, Stalwart Slayer onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
- Enchantment — AuraB
Dance of the Dead puts Rem Karolus, Stalwart Slayer onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
- Legendary Creature — Human BarbarianR
Godo, Bandit Warlord grants an extra combat phase, enabling Rem Karolus, Stalwart Slayer's combat-trigger payoff.
- SorceryW
Recommission puts Rem Karolus, Stalwart Slayer onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
- 2RWBEnchantmentBRW
All-Out Assault grants an extra combat phase, enabling Rem Karolus, Stalwart Slayer's combat-trigger payoff.
- SorceryW
Call a Surprise Witness puts Rem Karolus, Stalwart Slayer onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
- SorceryB
Soul Exchange puts Rem Karolus, Stalwart Slayer onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
- X2RCreature — TyranidR
Exocrine deals damage to many targets, fueling Rem Karolus, Stalwart Slayer's damage-payoff trigger.
- Legendary Creature — Human RabbitGR
Balthier and Fran grants an extra combat phase, enabling Rem Karolus, Stalwart Slayer's combat-trigger payoff.
- Legendary Creature — Human Scientist Hero // Legendary Creature — Gamma Berserker HeroGRU
Bruce Banner grants an extra combat phase, enabling Rem Karolus, Stalwart Slayer's combat-trigger payoff.
- Creature — DinosaurRW
Swooping Pteranodon produces broad damage that redirects through Rem Karolus, Stalwart Slayer into something useful.
MTG Arena only
Synergies with cards played only on MTG Arena (including Arena rebalances). They aren't available in paper Magic.
Confidence:StrongSolidPlausibleTentativeSpeculative
- SorceryR
Molten Impact produces broad damage that redirects through Rem Karolus, Stalwart Slayer into something useful.
- Legendary Creature — Human SamuraiRW
A-Raiyuu, Storm's Edge grants an extra combat phase, enabling Rem Karolus, Stalwart Slayer's combat-trigger payoff.
- 3RRCreature — DemonR
Chaos Balor deals damage, and Rem Karolus, Stalwart Slayer makes each hit bigger — it doubles, triples or adds to the damage your sources deal.
- Creature — Orc ArcherB
A-Orcish Bowmasters deals damage, and Rem Karolus, Stalwart Slayer makes each hit bigger — it doubles, triples or adds to the damage your sources deal.
- Legendary Planeswalker — TibaltR
Tibalt, Wicked Tormentor deals damage, and Rem Karolus, Stalwart Slayer makes each hit bigger — it doubles, triples or adds to the damage your sources deal.
- Artifact Creature — Ogre ShamanR
Bellowsbreath Ogre deals damage, and Rem Karolus, Stalwart Slayer makes each hit bigger — it doubles, triples or adds to the damage your sources deal.
- SorceryR
Consumed by History deals damage, and Rem Karolus, Stalwart Slayer makes each hit bigger — it doubles, triples or adds to the damage your sources deal.
- SorceryR
Conductive Current deals damage, and Rem Karolus, Stalwart Slayer makes each hit bigger — it doubles, triples or adds to the damage your sources deal.
- Legendary Planeswalker — Rowan // Legendary Planeswalker — WillRU
A-Rowan, Scholar of Sparks deals damage, and Rem Karolus, Stalwart Slayer makes each hit bigger — it doubles, triples or adds to the damage your sources deal.
- Legendary Creature — Human Elf ClericB
Shadowheart, Sharran Cleric deals damage, and Rem Karolus, Stalwart Slayer makes each hit bigger — it doubles, triples or adds to the damage your sources deal.
- Creature — Dragon // Sorcery — OmenGRU
Stonehide Ancient deals damage, and Rem Karolus, Stalwart Slayer makes each hit bigger — it doubles, triples or adds to the damage your sources deal.
- Enchantment — SagaR
Victory of the Pyrohammer deals damage, and Rem Karolus, Stalwart Slayer makes each hit bigger — it doubles, triples or adds to the damage your sources deal.
- Enchantment Creature — Lizard GlimmerBR
Gilded Ambusher deals damage, and Rem Karolus, Stalwart Slayer makes each hit bigger — it doubles, triples or adds to the damage your sources deal.
- Legendary Creature — Human ScoutGRW
Val, Marooned Surveyor deals damage, and Rem Karolus, Stalwart Slayer makes each hit bigger — it doubles, triples or adds to the damage your sources deal.
- Legendary Creature — WizardRU
A-Vivi Ornitier deals damage, and Rem Karolus, Stalwart Slayer makes each hit bigger — it doubles, triples or adds to the damage your sources deal.
- Creature — Goblin PilotR
Goblin Crash Pilot deals damage, and Rem Karolus, Stalwart Slayer makes each hit bigger — it doubles, triples or adds to the damage your sources deal.
- Enchantment — CaseR
Case of the Market Melee deals damage, and Rem Karolus, Stalwart Slayer makes each hit bigger — it doubles, triples or adds to the damage your sources deal.
- Creature — DinosaurGR
Stalwart Speartail deals damage, and Rem Karolus, Stalwart Slayer makes each hit bigger — it doubles, triples or adds to the damage your sources deal.
- Creature — Human Wizard SorcererR
A-Rockslide Sorcerer deals damage, and Rem Karolus, Stalwart Slayer makes each hit bigger — it doubles, triples or adds to the damage your sources deal.
- Creature — Orc Sorcerer // SorceryR
Crescendo Conductor deals damage, and Rem Karolus, Stalwart Slayer makes each hit bigger — it doubles, triples or adds to the damage your sources deal.
- Enchantment — Room // Enchantment — RoomR
Crude Abattoir deals damage, and Rem Karolus, Stalwart Slayer makes each hit bigger — it doubles, triples or adds to the damage your sources deal.
- Creature — DinosaurR
Chomping Mastasaur deals damage, and Rem Karolus, Stalwart Slayer makes each hit bigger — it doubles, triples or adds to the damage your sources deal.
- Legendary Planeswalker — KarnC
A-Karn, Living Legacy produces broad damage that redirects through Rem Karolus, Stalwart Slayer into something useful.
- Creature — Horse MountR
Switchgrass Grazer deals damage, and Rem Karolus, Stalwart Slayer makes each hit bigger — it doubles, triples or adds to the damage your sources deal.
- 2BRCreature — Human WarriorBR
A-Forge Boss deals damage, and Rem Karolus, Stalwart Slayer makes each hit bigger — it doubles, triples or adds to the damage your sources deal.
Personal Sanctuary2WEnchantmentW
Solitary Confinement2WEnchantmentW
Nine Lives1WWEnchantmentW
Hedron-Field Purists2WCreature — Human ClericW
Blessed Sanctuary3WWEnchantmentW
Guardian Seraph2WWCreature — AngelW
Reidane, God of the Worthy // Valkmira, Protector's Shield2W3WLegendary Creature — God // Legendary ArtifactW
Cover of Winter2WSnow EnchantmentW
Everdawn Champion1WWCreature — Human SoldierW
Enchanted Being1WWCreature — HumanW
Rune-Tail, Kitsune Ascendant // Rune-Tail's Essence2WLegendary Creature — Fox Monk // Legendary EnchantmentW
Sphere of Grace3WEnchantmentW