How can you create a combo with Lae'zel, Vlaakith's Champion, Jace, Cunning Castaway, Carth the Lion?
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[START OF COMBO]This combo can be formed with Lae'zel, Vlaakith's Champion, Jace, Cunning Castaway, Carth the Lion

Color identity: GWUB
Mana cost: {1}{U}{U}
Steps:
  1. Cast Jace by paying {1}{U}{U}.
  2. Jace enters the battlefield with four loyalty counters due to Lae'zel.
  3. Activate Jace's third loyalty ability by removing four loyalty counters from it.
  4. Jace dies as a state-based action due to having zero loyalty.
  5. Resolve the Jace ability, creating two non-legendary copies of Jace, which enter with four loyalty counters each due to Lae'zel.
  6. Repeat from step 3 using a Jace token.
  7. Once you have infinite Jace tokens, you may activate their second loyalty abilities by removing two loyalty counters from them, creating infinite 2/2 Illusion creature tokens.[END OF COMBO STEPS]

Result:
  - Infinite creature tokens
  - Infinite enters the battlefield
  - Infinite Jace, Cunning Castaway tokens[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Lae'zel, Vlaakith's Champion must be on the battlefield
  - Jace, Cunning Castaway must be in your hand
  - Carth the Lion must be on the battlefield
[END OF COMBO PREREQUISITES]
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