Gwenna, Eyes of Gaea + Cloudstone Curio + Sheltering Ancient + Tempting Wurm

Gwenna, Eyes of Gaea
Cloudstone Curio
Sheltering Ancient
Tempting Wurm

Requires
Gwenna, Eyes of Gaea must be on the battlefield. Cloudstone Curio must be on the battlefield. Sheltering Ancient must be on the battlefield. Tempting Wurm must be in hand. Gwenna does not have summoning sickness.
Steps
  1. Activate Gwenna by tapping it, adding 1 that can only be spent to cast creature spells or activate abilities of creatures.
  2. Cast Tempting Wurm by paying 1.
  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 Sheltering Ancient from the battlefield to your hand.
  7. Activate Gwenna by tapping it, adding 1 that can only be spent to cast creature spells or activate abilities of creatures.
  8. Cast Sheltering Ancient by paying 1.
  9. Gwenna triggers, putting a +1/+1 counter on it and untapping it.
  10. Sheltering Ancient enters the battlefield, triggering Cloudstone Curio, returning Tempting Wurm from the battlefield to your hand.
  11. Repeat.
Results
Infinite +1/+1 counters on Gwenna. Infinite ETB. Infinite LTB. Infinite storm count.

Gwenna, Eyes of Gaea
0.13% of 754 decks 1 decks
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