First printed in Modern Horizons (2019)
All 11 prints
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Secret Lair Drop (SLD) #1944, 2025
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Secret Lair Drop (SLD) #1896, 2025
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Modern Horizons 3 Commander (M3C) #157, 2024
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Commander Masters (CMM) #1058, 2023
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Commander Masters (CMM) #3, 2023
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Commander Masters (CMM) #453, 2023
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Commander Masters (CMM) #669, 2023
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Modern Horizons Promos (PMH1) #1p, 2021
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The List (PLST) #MH1-1, 2021
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Judge Gift Cards 2021 (PJ21) #1, 2021
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Modern Horizons (MH1) #1, 2019
Morophon, the Boundless 
Legendary Creature — Shapeshifter
Changeling (This card is every creature type.)
As Morophon enters, choose a creature type.
Spells of the chosen type you cast cost 
less to cast. This effect reduces only the amount of colored mana you pay.
Other creatures you control of the chosen type get +1/+1.
In the last 30 days 0.0% of Commander decks played it (2 of 6150). Most played in Ulalek, Fused Atrocity.
Combos
197 combos from Commander Spellbook, the most popular first.
- Infinite creature LTB, Infinite creature ETB…: Hibernation Sliver + Lavabelly Sliver + Morophon, the Boundless + Syphon Sliver
- Infinite damage, Infinite creature ETB…: Essence Sliver + Hibernation Sliver + Lavabelly Sliver + Morophon, the Boundless
- Reduce the toughness of creatures opponents control to 0, Reduce the toughness of each creature opponents control to 0 upon entering: Haakon, Stromgald Scourge + Morophon, the Boundless + Nameless Inversion + The Ur-Dragon
- Cast all Sliver creature cards in your hand and library, Near-infinite colorless mana: Fist of Suns + Mana Echoes + Morophon, the Boundless + Sliver Overlord
- Infinite damage, Infinite creature ETB…: Aetherflux Reservoir + Hibernation Sliver + Morophon, the Boundless
- Infinite creature ETB, Infinite creature LTB…: Grinning Ignus + Morophon, the Boundless
- Infinite creature ETB, Infinite creature LTB…: Horned Kavu + Morophon, the Boundless
- Infinite creature ETB, Infinite creature LTB…: Morophon, the Boundless + Shrieking Drake
- Infinite creature LTB, Infinite creature ETB…: Fist of Suns + Morophon, the Boundless + Spider-Man 2099, Miguel O'Hara
- Cast all Sliver creature cards in your hand and library, Near-infinite colorless mana: Jodah, Archmage Eternal + Mana Echoes + Morophon, the Boundless + Sliver Overlord
Legality
Constructed
- Standard Not legal
- Pioneer Not legal
- Modern Legal
- Legacy Legal
- Vintage Legal
- Pauper Not legal
- Future Standard Not legal
- Historic Not legal
- Timeless Not legal
- Alchemy Not legal
- Penny Dreadful Legal
- Premodern Not legal
- Old School 93/94 Not legal
Singleton
- Gladiator Not legal
Commander formats
- Commander Legal
- Duel Commander Legal
- Pauper Commander Not legal
- PreDH Not legal
- Tiny Leaders Not legal
- Oathbreaker Legal
- Brawl Not legal
- Standard Brawl Not legal
- Competitive Brawl Not legal