How can you create a combo with Slimefoot and Squee, Phyrexian Altar, Burning-Tree Emissary?
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[START OF COMBO]This combo can be formed with Slimefoot and Squee, Phyrexian Altar, Burning-Tree Emissary

Color identity: BRG
Mana cost: {1}, plus either {B}, {R} or {G} available
Steps:
  1. Activate Phyrexian Altar twice by sacrificing Burning-Tree Emissary and Slimefoot and Squee, adding two mana in any combination of {B}, {R} or {G}.
  2. Activate Slimefoot and Squee by paying {1}{B}{R}{G} and sacrificing a Saproling, returning it and Burning-Tree Emissary from your graveyard to the battlefield.
  3. When Burning-Tree Emissary and Slimefoot and Squee enter the battlefield, their abilities trigger.
  4. Resolve the Burning-Tree Emissary trigger, adding {R}{G}.
  5. Resolve the Slimefoot and Squee trigger, creating a 1/1 Saproling creature token.
  6. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - You control at least one Saproling.
[END OF COMBO PREREQUISITES]
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