How can you create a combo with Gwenna, Eyes of Gaea, Cloudstone Curio, Grim Wanderer, Tempting Wurm?
user
[START OF COMBO]This combo can be formed with Gwenna, Eyes of Gaea, Cloudstone Curio, Grim Wanderer, Tempting Wurm

Color identity: BG
Mana cost: 
Steps:
  1. Activate Gwenna by tapping it, adding {1}{G} that can only be spent to cast creature spells or activate abilities of creatures.
  2. Cast Tempting Wurm by paying {1}{G}.
  3. Gwenna triggers, putting a +1/+1 counter on it and untapping it.
  4. Tempting Wurm enters the battlefield, triggering itself and Cloudstone Curio.
  5. Resolve the Tempting Wurm trigger, allowing each opponent to put any number of artifact, enchantment, creature and/or land cards from their hand onto the battlefield.
  6. Resolve the Cloudstone Curio trigger, returning Grim Wanderer from the battlefield to your hand.
  7. Activate Gwenna by tapping it, adding {1}{B} that can only be spent to cast creature spells or activate abilities of creatures.
  8. Cast Grim Wanderer by paying {1}{B}.
  9. Gwenna triggers, putting a +1/+1 counter on it and untapping it.
  10. Grim Wanderer enters the battlefield, triggering Cloudstone Curio, returning Tempting Wurm from the battlefield to your hand.
  11. Repeat.[END OF COMBO STEPS]

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

Other prerequisites:
  - Gwenna, Eyes of Gaea must be on the battlefield
  - Cloudstone Curio must be on the battlefield
  - Grim Wanderer must be on the battlefield
  - Tempting Wurm must be in your hand
  - Gwenna does not have summoning sickness.
  - A creature has died this turn.
[END OF COMBO PREREQUISITES]
assistant