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.
6/6
Why is this card good?
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Printings (11)
Played by these commanders
Combos (8)
- Hibernation Sliver + Morophon, the Boundless + Syphon Sliver + Lavabelly Sliver
→ Infinite LTB, Infinite ETB, Infinite damage
- Morophon, the Boundless + Hibernation Sliver + Essence Sliver + Lavabelly Sliver
→ Infinite damage, Infinite ETB, Infinite lifegain triggers
- The Ur-Dragon + Haakon, Stromgald Scourge + Morophon, the Boundless + Nameless Inversion
→ Reduce the toughness of creatures opponents control to 0, Reduce the toughness of each creature opponents control to 0 upon entering
- Morophon, the Boundless + Sliver Overlord + Mana Echoes + Fist of Suns
→ Cast all Sliver creature cards in your hand and library, Near-infinite colorless mana
- Morophon, the Boundless + Hibernation Sliver + Aetherflux Reservoir
→ Infinite damage, Infinite ETB, Infinite lifegain triggers
- Morophon, the Boundless + Grinning Ignus
→ Infinite ETB, Infinite LTB, Infinite storm count
Rulings (5)
- 2019-06-14
You must choose an existing creature type, such as Sliver or Warrior. Card types such as artifact, and supertypes such as legendary or snow, can't be chosen.
- 2019-06-14
Morophon's effect reduces the total cost by up to one mana of each color. For example, if a spell of the chosen type costs
, it will cost after applying Morophon's effect. - 2019-06-14
If a spell has hybrid mana symbols in its mana cost, you choose which half you will be paying before determining the total cost. For example, if a spell of the chosen type costs
, you may choose for the cost to be and then reduce it to . - 2019-06-14
Cost reduction effects are applied after other cost modifiers, so Morophon can reduce additional costs or alternative costs of spells of the chosen type.
- 2019-06-14
Because damage remains marked on a creature until the damage is removed as the turn ends, nonlethal damage dealt to other creatures you control of the chosen type may become lethal if Morophon leaves the battlefield during that turn.