How can you create a combo with Slimefoot and Squee, Infested Thrinax, Phyrexian Altar?
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[START OF COMBO]This combo can be formed with Slimefoot and Squee, Infested Thrinax, Phyrexian Altar

Color identity: BRG
Mana cost: {3}{B}{G}
Steps:
  1. Cast Infested Thrinax by paying {3}{B}{G}.
  2. When Infested Thrinax enters the battlefield, it triggers, causing you to create a number of 1/1 Saproling creature tokens when a nontoken creature you control dies.
  3. Activate Phyrexian Altar by sacrificing Slimefoot and Squee, adding {B}.
  4. When Slimefoot and Squee dies, Infested Thrinax triggers, creating three 1/1 Saproling creature tokens.
  5. Activate Phyrexian Altar by sacrificing Infested Thrinax, adding {R}.
  6. When Infested Thrinax dies, its delayed ability triggers, creating four 1/1 Saproling creature tokens.
  7. Activate Phyrexian Altar twice by sacrificing two Saproling tokens, adding {1}{G}.
  8. Activate Slimefoot and Squee by paying {1}{B}{R}{G} and sacrificing a Saproling, returning it and Infested Thrinax from your graveyard to the battlefield.
  9. When Slimefoot and Squee and Infested Thrinax enter the battlefield, they each trigger.
  10. Resolve the Slimefoot and Squee trigger, creating a 1/1 Saproling creature token.
  11. Resolve the Infested Thrinax trigger, causing you to create a number of 1/1 Saproling creature tokens when a nontoken creature you control dies.
  12. Activate Phyrexian Altar by sacrificing Slimefoot and Squee, adding {B}.
  13. When Slimefoot and Squee dies, Infested Thrinax triggers twice, creating six 1/1 Saproling creature tokens.
  14. You may repeat steps 12 and 13 once for another nontoken creature you control, if desired.
  15. Activate Phyrexian Altar three times by sacrificing three Saproling tokens, adding {1}{R}{G}.
  16. Activate Slimefoot and Squee by paying {1}{B}{R}{G} and sacrificing a Saproling, returning it and up to one other creature from your graveyard to the battlefield.
  17. When Slimefoot and Squee enters the battlefield, it triggers, creating a 1/1 Saproling creature token.
  18. Repeat from step 12.[END OF COMBO STEPS]

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

Other prerequisites:
  - Slimefoot and Squee must be on the battlefield
  - Infested Thrinax must be in your hand
  - Phyrexian Altar must be on the battlefield
[END OF COMBO PREREQUISITES]
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