How can you create a combo with Yurlok of Scorch Thrash, Agatha's Soul Cauldron, Hateflayer, Heartstone?
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[START OF COMBO]This combo can be formed with Yurlok of Scorch Thrash, Agatha's Soul Cauldron, Hateflayer, Heartstone

Color identity: BRG
Mana cost: {1}
Steps:
  1. Activate Yurlok of Scorch Thrash by paying {1} and tapping it, causing each player to add {B}{R}{G}.
  2. Activate Yurlok of Scorch Thrash using Hateflayer's ability by paying {1}{R} and untapping it, causing Yurlok of Scorch Thrash to deal damage equal to its power to any target.
  3. Repeat.
  4. If needed, proceed to the next step or phase, causing each opponent to lose life equal to the amount of mana in their mana pool.[END OF COMBO STEPS]

Result:
  - Infinite damage
  - Infinite lifeloss
  - Infinite red mana for opponents
  - Infinite green mana for all players
  - Infinite black mana for all players[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Yurlok of Scorch Thrash must be on the battlefield
  - Agatha's Soul Cauldron must be on the battlefield
  - Hateflayer must be exiled
  - Heartstone must be on the battlefield
  - Yurlok of Scorch Thrash does not have summoning sickness.
  - Yurlok of Scorch Thrash has at least one +1/+1 counter on it.
[END OF COMBO PREREQUISITES]
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