How can you create a combo with Henzie "Toolbox" Torre, Gwenna, Eyes of Gaea, Sparkcaster?
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[START OF COMBO]This combo can be formed with Henzie "Toolbox" Torre, Gwenna, Eyes of Gaea, Sparkcaster

Color identity: BRG
Mana cost: 
Steps:
  1. Activate Gwenna by tapping it, adding {R}{G}.
  2. Cast Sparkcaster for its blitz cost by paying {R}{G}.
  3. Gwenna triggers, putting a +1/+1 counter on it and untapping it.
  4. When Sparkcaster enters the battlefield, its first and second abilities trigger.
  5. Resolve the first trigger, returning Sparkcaster from the battlefield to your hand.
  6. Resolve the second triggers, dealing 1 damage to any player or planeswalker.
  7. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite +1/+1 counters on Gwenna
  - Infinite damage
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Henzie "Toolbox" Torre must be on the battlefield
  - Gwenna, Eyes of Gaea must be on the battlefield
  - Sparkcaster must be in your hand
  - You have cast your commander from the command zone at least twice.
  - Gwenna does not have summoning sickness.
[END OF COMBO PREREQUISITES]
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