15 more formats
Confidence:StrongSolidPlausibleTentativeSpeculative
- EnchantmentR
Flame Blitz has cycling, and Scarlet Spider, Kaine pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
- SorceryB
Unearth has cycling, and Scarlet Spider, Kaine pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
- SorceryR
Decree of Annihilation has cycling, and Scarlet Spider, Kaine pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
- Creature — Vedalken WizardU
Vedalken Aethermage has cycling, and Scarlet Spider, Kaine pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
- EnchantmentR
Unpredictable Cyclone has cycling, and Scarlet Spider, Kaine pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
- SorceryW
Jolted Awake has cycling, and Scarlet Spider, Kaine pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
- Legendary Planeswalker — ChandraR
Copy engine: one card makes copies of a creature — once a turn, or once for each time you pay its cost — and each copy pays off: the creature's enter-the-battlefield effect fires again, or the hasty copy uses its tap ability. Real, repeatable value — every copy has its turn or its price, so it never goes infinite on its own.
- Legendary Creature — Human KnightW
Basri, Tomorrow's Champion has cycling, and Scarlet Spider, Kaine pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
- SorceryB
Decree of Pain has cycling, and Scarlet Spider, Kaine pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
- Legendary Creature — Human God HeroUW
Blink engine: one card blinks creatures — once a turn, once a combat, or each time you pay — and the other's enter-the-battlefield effect fires again on every blink. Real, repeatable value — never infinite on its own.
- Legendary Enchantment Creature — GodU
Blink engine: one card blinks creatures — once a turn, once a combat, or each time you pay — and the other's enter-the-battlefield effect fires again on every blink. Real, repeatable value — never infinite on its own.
- Creature — Spirit // Enchantment — AuraU
One-shot copy enabler: a card enters as a copy of another (Phantasmal Image, Body Double, Phyrexian Metamorph), firing the partner's substantive ETB once. Not a repeating chain — fires once on entry — but valuable when the partner's ETB is combo-grade (graveyard reanimator, mana doubler, etc.).
- Legendary Artifact — Infinity StoneW
Blink engine: one card blinks creatures — once a turn, once a combat, or each time you pay — and the other's enter-the-battlefield effect fires again on every blink. Real, repeatable value — never infinite on its own.
- SorceryW
Spectacular Pileup has cycling, and Scarlet Spider, Kaine pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
- SorceryU
Boon of the Wish-Giver has cycling, and Scarlet Spider, Kaine pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
- SorceryB
Intimidation Tactics has cycling, and Scarlet Spider, Kaine pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
- 1UUInstantU
Neutralize has cycling, and Scarlet Spider, Kaine pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
- 1WUCreature — SpiritUW
Blink engine: one card blinks creatures — once a turn, once a combat, or each time you pay — and the other's enter-the-battlefield effect fires again on every blink. Real, repeatable value — never infinite on its own.
- Creature — Insect ArcherG
Webstrike Elite has cycling, and Scarlet Spider, Kaine pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
- SorceryR
Slice and Dice has cycling, and Scarlet Spider, Kaine pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
- SorceryU
Lórien Revealed has cycling, and Scarlet Spider, Kaine pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
- 3W/UW/ULegendary Creature — Mutant Ninja TurtleUW
Blink engine: one card blinks creatures — once a turn, once a combat, or each time you pay — and the other's enter-the-battlefield effect fires again on every blink. Real, repeatable value — never infinite on its own.
- InstantU
Dismissive Denial has cycling, and Scarlet Spider, Kaine pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
- SorceryW
Borough Backup has cycling, and Scarlet Spider, Kaine pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
MTG Arena only
Synergies with cards played only on MTG Arena (including Arena rebalances). They aren't available in paper Magic.
Confidence:StrongSolidPlausibleTentativeSpeculative
- InstantW
Resolute Rejection has cycling, and Scarlet Spider, Kaine pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
- Legendary Creature — Bird MonkRUW
Blink engine: one card blinks creatures — once a turn, once a combat, or each time you pay — and the other's enter-the-battlefield effect fires again on every blink. Real, repeatable value — never infinite on its own.
- InstantW
Radiant Smite has cycling, and Scarlet Spider, Kaine pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
- Creature — Human SoldierW
Benalish Partisan has cycling, and Scarlet Spider, Kaine pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
- Creature — SpiritRU
Mangled Soulrager has cycling, and Scarlet Spider, Kaine pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
- Artifact Creature — Phyrexian ShapeshifterU
One-shot copy enabler: a card enters as a copy of another (Phantasmal Image, Body Double, Phyrexian Metamorph), firing the partner's substantive ETB once. Not a repeating chain — fires once on entry — but valuable when the partner's ETB is combo-grade (graveyard reanimator, mana doubler, etc.).
- Creature — CrocodileB
Perforator Crocodile has cycling, and Scarlet Spider, Kaine pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
- EnchantmentG
Both cards trigger when a creature enters the battlefield — they fire together.
- Creature — Bat ClericB
Both cards trigger when a creature enters the battlefield — they fire together.
- Legendary Creature — Human NobleGRW
Both cards trigger when a creature enters the battlefield — they fire together.
- Legendary Creature — Human AssassinG
Both cards trigger when a creature enters the battlefield — they fire together.
- Creature — Frog DruidBG
Both cards trigger when a creature enters the battlefield — they fire together.
- Enchantment Creature — NightmareB
Fear of Ridicule creates token copies, feeding Scarlet Spider, Kaine's ETB or copy payoff.
- Creature — InsectG
Both cards trigger when a creature enters the battlefield — they fire together.
- Legendary Creature — Human ClericUW
Niambi, Beloved Protector returns creatures from the graveyard to the battlefield, re-firing Scarlet Spider, Kaine's enter-the-battlefield effect.
- Creature — Elf DruidGRW
Both cards trigger when a creature enters the battlefield — they fire together.
- Artifact Creature — Equipment PhoenixR
Forgeborn Phoenix returns creatures from the graveyard to the battlefield, re-firing Scarlet Spider, Kaine's enter-the-battlefield effect.
- EnchantmentUW
Both cards trigger when a creature enters the battlefield — they fire together.
- SorceryB
Feed the Bog returns creatures from the graveyard to the battlefield, re-firing Scarlet Spider, Kaine's enter-the-battlefield effect.
- Legendary Artifact — SpacecraftW
Candela, Aegis of Adagia bounces a permanent, enabling Scarlet Spider, Kaine's recast / spell-cast trigger.
- Creature — Dragon // Sorcery — OmenGRU
Stonehide Ancient bounces a permanent, enabling Scarlet Spider, Kaine's recast / spell-cast trigger.
- Creature — Vampire SoldierB
Legion Reconsecrator returns creatures from the graveyard to the battlefield, re-firing Scarlet Spider, Kaine's enter-the-battlefield effect.
- Legendary Planeswalker — TeferiUW
A-Teferi, Time Raveler bounces a permanent, enabling Scarlet Spider, Kaine's recast / spell-cast trigger.
- Creature — HumanC
Ominous Traveler bounces a permanent, enabling Scarlet Spider, Kaine's recast / spell-cast trigger.
- Creature — Merfolk ScoutBG
Jet Collector returns creatures from the graveyard to the battlefield, re-firing Scarlet Spider, Kaine's enter-the-battlefield effect.
Swarm, Being of Bees2BLegendary Creature — Insect VillainB
Spectral Adversary1UCreature — SpiritU
Raffine's Informant1WCreature — Human WizardW
Goblin Trailblazer1RCreature — Goblin PirateR
Deranged Whelp1RCreature — WolfR
Oreplate Pangolin1RArtifact Creature — Robot PangolinR
Thriving Grubs1RCreature — GremlinR
Iron Bully3Artifact Creature — GolemC
Sky TerrorRWCreature — DinosaurRW
Bloodthirsty Adversary1RCreature — VampireR
Backup Agent1WCreature — Human CitizenW
Vampire SocialiteBRCreature — Vampire NobleBR