Skirk Prospector + The Fire Crystal + Krenko, Mob Boss Combo

Played with this combo

Prerequisites
What do I need to start this combo?
- All permanents on the battlefield.
- Krenko must be your commander.
- You control a number of Goblins that is equal to or greater than six plus Krenko's commander tax.
Steps
How does this combo work?
- 1
  Activate Krenko by tapping it, creating a number of 1/1 Goblin creature tokens equal to the number of Goblins you control.
- 2
  Activate Skirk Prospector by sacrificing Krenko, adding .
- 3
  Choose to return Krenko to the command zone from your graveyard.
- 4
  Activate Skirk Prospector by sacrificing a Goblin, adding .
- 5
  Repeat step 4 until you have enough mana to cast Krenko.
- 6
  Cast Krenko from the command zone by paying plus commander tax.
- 7
  Repeat.
Results
What do I get from this combo?
- Infinite creature LTB
- Infinite creature ETB
- Infinite creature sacrifice triggers
- Infinite death triggers
- Infinite storm count
- Infinite red mana
- Infinite creature tokens with haste
- Infinite commander casts