15 more formats
Confidence:StrongSolidPlausibleTentativeSpeculative
- Legendary Creature — Human WarriorBGRUW
One-directional refresh: one card can untap permanents the other wants to reuse. Not self-sustaining on its own — the untapper has to keep showing up.
- Artifact Creature — Vedalken WizardBUW
One-directional refresh: one card can untap permanents the other wants to reuse. Not self-sustaining on its own — the untapper has to keep showing up.
- Legendary Creature — Human Noble VillainB
Copy engine: one card makes a copy of a creature every turn, and the other's enter-the-battlefield effect rewards each copy. Real, repeatable value — the partner can't untap or re-enter the copier, so it never goes infinite.
- Legendary Creature — Human RogueBG
Both cards trigger when a creature dies — they fire together.
- Legendary Planeswalker — MinscGR
Electric Seaweed produces damage that can kill creatures, enabling Minsc & Boo, Timeless Heroes's death-trigger or removal payoff.
- Creature — Vampire Warlock // InstantB
Electric Seaweed produces damage that can kill creatures, enabling Bloodline Recollector's death-trigger or removal payoff.
- Enchantment Creature — SpiritB
Both cards trigger when a creature dies — they fire together.
- Legendary EnchantmentB
Both cards trigger when a creature dies — they fire together.
- Legendary Creature — ElementalGR
Both cards trigger when a creature dies — they fire together.
- Legendary Creature — Human Snake VillainBG
Both cards trigger when a creature dies — they fire together.
- Legendary Planeswalker — GarrukBG
Both cards trigger when a creature dies — they fire together.
- Legendary Creature — Vampire AssassinB
Both cards trigger when a creature dies — they fire together.
- Legendary Creature — Cat Warrior // Legendary Planeswalker — AjaniRW
Both cards trigger when a creature dies — they fire together.
- Legendary Planeswalker — LilianaB
Both cards trigger when a creature dies — they fire together.
- Legendary Creature — Human WarlockBRU
Both cards trigger when a creature dies — they fire together.
- Legendary Creature — Human KnightBW
Both cards trigger when a creature dies — they fire together.
- Legendary Creature — Human Warrior VillainBG
Both cards trigger when a creature dies — they fire together.
- Creature — Elephant AdvisorG
Both cards trigger when a creature dies — they fire together.
- Creature — Kor Artificer AllyW
Both cards trigger when a creature dies — they fire together.
- Legendary Creature — Human SamuraiB
Both cards trigger when a creature dies — they fire together.
- Creature — Elf ScoutG
Copperhorn Scout untaps all (or many) permanents, refreshing Electric Seaweed's tap activation.
MTG Arena only
Synergies with cards played only on MTG Arena (including Arena rebalances). They aren't available in paper Magic.
Confidence:StrongSolidPlausibleTentativeSpeculative
- Creature — Human MonkR
Copy engine: one card makes a copy of a creature every turn, and the other's enter-the-battlefield effect rewards each copy. Real, repeatable value — the partner can't untap or re-enter the copier, so it never goes infinite.
- Creature — Cat HorrorB
Both cards trigger when a creature dies — they fire together.
- Legendary Planeswalker — MinscGR
Electric Seaweed produces damage that can kill creatures, enabling A-Minsc & Boo, Timeless Heroes's death-trigger or removal payoff.
- Creature — Elf BerserkerB
Both cards trigger when a creature dies — they fire together.
- Creature — Ogre WarlockB
Electric Seaweed produces damage that can kill creatures, enabling Underbridge Warlock's death-trigger or removal payoff.
- Creature — Elf WarlockBG
Electric Seaweed produces damage that can kill creatures, enabling Perennial Gravewarden's death-trigger or removal payoff.
- Creature — SpiritU
Both cards trigger when a creature dies — they fire together.
- Creature — DinosaurB
Both cards trigger when a creature dies — they fire together.
- Creature — Lizard WarlockBR
Both cards trigger when a creature dies — they fire together.
- Creature — Tiefling ClericB
Electric Seaweed produces damage that can kill creatures, enabling A-Death-Priest of Myrkul's death-trigger or removal payoff.
- Legendary Creature — Vampire KnightBW
Electric Seaweed produces damage that can kill creatures, enabling Arvad, Weatherlight Smuggler's death-trigger or removal payoff.
- Artifact — EquipmentRW
Both cards trigger when a creature dies — they fire together.
- 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.).
- Legendary Creature — Human Elf WarlockBG
Electric Seaweed produces damage that can kill creatures, enabling A-Shessra, Death's Whisper's death-trigger or removal payoff.
- Enchantment Creature — NightmareB
Fear of Ridicule creates token copies, feeding Electric Seaweed's ETB or copy payoff.
- Creature — Bat ClericB
Both cards trigger when a creature enters the battlefield — they fire together.
Viashino Fangtail2RRCreature — Lizard WarriorR
Vulshok Sorcerer1RRCreature — Human Shaman SorcererR
Prodigal Pyromancer2RCreature — Human WizardR
Frostwielder2RRCreature — Human ShamanR
Suq'Ata Firewalker1UUCreature — Human WizardU
Jeska, Warrior Adept2RRLegendary Creature — Human Barbarian WarriorR
Rootwater Hunter2UCreature — MerfolkU
Fledgling Mawcor3UCreature — BeastU
Zuran Spellcaster2UCreature — Human WizardU
Wu Longbowman2UCreature — Human Soldier ArcherU
Thornwind Faeries1UUCreature — FaerieU
Capricious Sorcerer2UCreature — Human Wizard SorcererU