How can you create a combo with Emiel the Blessed, Yurlok of Scorch Thrash, Retreat to Coralhelm, Ashaya, Soul of the Wild?
user
[START OF COMBO]This combo can be formed with Emiel the Blessed, Yurlok of Scorch Thrash, Retreat to Coralhelm, Ashaya, Soul of the Wild

Color identity: WUBRG
Mana cost: 
Steps:
  1. Activate the nontoken creature with haste by tapping it, adding {G}.
  2. Activate Yurlok by paying {1} and tapping it, causing each player to add {B}{R}{G}.
  3. Activate Emiel by paying {3}, blinking the nontoken creature with haste.
  4. When the creature enters the battlefield, Retreat to Coralhelm triggers, untapping Yurlok.
  5. Repeat an arbitrarily large number of times.
  6. Move to your next step and/or phase, causing each opponent to lose an amount of life equal to the amount of unspent mana they have.[END OF COMBO STEPS]

Result:
  - Infinite black mana for opponents
  - Infinite enters the battlefield
  - Infinite green mana for opponents
  - Infinite landfall triggers
  - Infinite lifeloss
  - Infinite leaves the battlefield
  - Infinite red mana for opponents[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - You control a nontoken creature that has haste.
  - Yurlok does not have summoning sickness.
[END OF COMBO PREREQUISITES]
assistant