15 more formats
Confidence:StrongSolidPlausibleTentativeSpeculative
- EnchantmentU
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 — Phyrexian HorrorW
One card multiplies the tokens the other creates — a token doubler pointed at a steady token source.
- 3WUCreature — Human KnightUW
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.
- Enchantment — AuraU
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.
- Creature — Elf ScoutG
Copperhorn Scout untaps all (or many) permanents, refreshing Undercellar Myconid's tap activation.
- Creature — Orc ClericW
White Plume Adventurer untaps all (or many) permanents, refreshing Undercellar Myconid's tap activation.
- 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.).
- Creature — DryadG
Both cards produce the same kind of effect (shared token subtype).
- Creature — Human KnightGW
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 — Time Lord DoctorGU
The Thirteenth Doctor untaps all (or many) permanents, refreshing Undercellar Myconid's tap activation.
- Creature — SpiritW
Drumbellower untaps all (or many) permanents, refreshing Undercellar Myconid's tap activation.
- Legendary Creature — Orc Shaman // Legendary Creature — Human ClericRW
Plargg, Dean of Chaos untaps all (or many) permanents, refreshing Undercellar Myconid's tap activation.
- Legendary Creature — Human WarriorGRW
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 — Trill AdvisorW
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.).
- InstantU
Intellectual Offering untaps all (or many) permanents, refreshing Undercellar Myconid's tap activation.
- Enchantment — Room // Enchantment — RoomW
Dazzling Theater untaps all (or many) permanents, refreshing Undercellar Myconid's tap activation.
- Creature — Elf DruidG
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 KnightR
Éomer, Marshal of Rohan untaps all (or many) permanents, refreshing Undercellar Myconid's tap activation.
- Creature — Elf ShamanG
Both cards produce the same kind of effect (shared token subtype).
- Legendary Creature — Human WarlockG
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 Planeswalker — GideonW
Gideon, Martial Paragon untaps all (or many) permanents, refreshing Undercellar Myconid's tap activation.
- Creature — Human WizardGU
Prophet of Kruphix untaps all (or many) permanents, refreshing Undercellar Myconid's tap activation.
- EnchantmentU
Unstoppable Plan untaps all (or many) permanents, refreshing Undercellar Myconid's tap activation.
- Creature — ElephantBGW
Ivorytusk Fortress untaps all (or many) permanents, refreshing Undercellar Myconid'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
- 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 — 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 Undercellar Myconid's ETB or copy payoff.
- Creature — InsectG
Both cards trigger when a creature enters the battlefield — they fire together.
- Legendary Creature — Bird MonkRUW
Xho Cai, Flickering Talon blinks (exiles and returns) a permanent, re-firing Undercellar Myconid's enter-the-battlefield effect.
- Legendary Creature — Human ClericUW
Niambi, Beloved Protector returns creatures from the graveyard to the battlefield, re-firing Undercellar Myconid'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 Undercellar Myconid'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 Undercellar Myconid's enter-the-battlefield effect.
- Legendary Artifact — SpacecraftW
Candela, Aegis of Adagia bounces a permanent, enabling Undercellar Myconid's recast / spell-cast trigger.
- Creature — Dragon // Sorcery — OmenGRU
Stonehide Ancient bounces a permanent, enabling Undercellar Myconid's recast / spell-cast trigger.
- Creature — Vampire SoldierB
Legion Reconsecrator returns creatures from the graveyard to the battlefield, re-firing Undercellar Myconid's enter-the-battlefield effect.
- Legendary Planeswalker — TeferiUW
A-Teferi, Time Raveler bounces a permanent, enabling Undercellar Myconid's recast / spell-cast trigger.
- Creature — HumanC
Ominous Traveler bounces a permanent, enabling Undercellar Myconid's recast / spell-cast trigger.
- Creature — FungusG
Propagator Primordium returns creatures from the graveyard to the battlefield, re-firing Undercellar Myconid's enter-the-battlefield effect.
- Creature — Human ClericW
Both cards trigger when a creature enters the battlefield — they fire together.
- Artifact Creature — ConstructB
Forgefire Automaton returns creatures from the graveyard to the battlefield, re-firing Undercellar Myconid's enter-the-battlefield effect.
- InstantU
Paths of Tuinvale bounces a permanent, enabling Undercellar Myconid's recast / spell-cast trigger.
- InstantBU
Vesuvan Mist bounces a permanent, enabling Undercellar Myconid's recast / spell-cast trigger.
- SorceryW
Honor the Past returns creatures from the graveyard to the battlefield, re-firing Undercellar Myconid's enter-the-battlefield effect.
- Creature — Faerie WizardU
Talion's Throneguard bounces a permanent, enabling Undercellar Myconid's recast / spell-cast trigger.
Tender Wildguide1GCreature — Possum DruidG
Naga Vitalist1GCreature — Snake DruidG
Deathbloom Gardener2GCreature — Elf DruidG
Opaline Unicorn3Artifact Creature — UnicornC
Draconic Disciple1RGCreature — Human ShamanGR
Lifespring Druid2GCreature — Elf DruidG
Utopia Tree1GCreature — PlantG
Sylvok Explorer1GCreature — Human DruidG
Quirion Explorer1GCreature — Elf Druid ScoutG
Harvester Druid1GCreature — Human DruidG
Brigid, Clachan's Heart // Brigid, Doun's Mind2WLegendary Creature — Kithkin Warrior // Legendary Creature — Kithkin SoldierGW
Nightshade Dryad1GCreature — DryadG