How can you create a combo with Garth One-Eye, Necrotic Ooze, Tireless Tribe, Barrenton Medic?
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[START OF COMBO]This combo can be formed with Garth One-Eye, Necrotic Ooze, Tireless Tribe, Barrenton Medic

Color identity: WUBRG
Mana cost: 
Steps:
  1. Activate Necrotic Ooze using Garth One-Eye's ability by tapping it, causing you to pay {0} to cast a copy of Black Lotus.
  2. Activate Black Lotus by tapping and sacrificing it, adding {G}{G}{G}.
  3. Activate Necrotic Ooze using Barrenton Medic's second ability by putting a -1/-1 counter on it, untapping it.
  4. Activate Necrotic Ooze using Garth One-Eye's ability by tapping it, causing you to pay {1}{G} to cast a copy of Regrowth.
  5. Resolve Regrowth, returning Garth One-Eye to your hand from your graveyard.
  6. Activate Necrotic Ooze using Tireless Tribe's ability by discarding Garth One-Eye, giving Necrotic Ooze +0/+4 until end of turn.
  7. Activate Necrotic Ooze using Barrenton Medic's second ability by putting a -1/-1 counter on it, untapping it.
  8. Repeat.
  9. Once you have infinite {G}, you may sacrifice Black Lotus for any other color of mana, and use that to cast any other spells from Garth One-Eye's ability.[END OF COMBO STEPS]

Result:
  - Infinite Black Lotus tokens
  - Infinite card draw for any number of players
  - Infinite casts of all spells permitted by Garth One-Eye
  - Infinite colored mana
  - Infinite creature tokens
  - Infinite draw triggers for any number of players
  - Infinite magecraft triggers
  - Infinite self-discard triggers
  - Infinite storm count
  - Infinite enters the battlefield
  - Return all cards from your graveyard to your hand
  - Infinitely powerful Shivan Dragons until end of turn[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Garth One-Eye must be in the graveyard
  - Necrotic Ooze must be on the battlefield
  - Tireless Tribe must be in the graveyard
  - Barrenton Medic must be in the graveyard
  - Necrotic Ooze does not have summoning sickness.
[END OF COMBO PREREQUISITES]
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