Molderhulk + Cloudstone Curio + Dual Nature + Overgrown Estate

Molderhulk

Cloudstone Curio

Dual Nature

Overgrown Estate

How it works

1. Activate a Swamp and Forest by tapping them, adding .
2. Activate Overgrown Estate twice by sacrificing the Swamp and Forest, causing you to gain 6 life.
3. Cast Molderhulk by paying .
4. When Molderhulk enters the battlefield, it, Dual Nature's first ability and Cloudstone Curio trigger.
5. Resolve the Cloudstone Curio trigger, choosing to return nothing to your hand.
6. Resolve the Dual Nature trigger, creating a token copy of Molderhulk.
7. When the Molderhulk token enters the battlefield, it and Cloudstone Curio trigger.
8. Resolve the Cloudstone Curio trigger, returning the nontoken Molderhulk from the battlefield to your hand.
9. When the nontoken Molderhulk leaves the battlefield, Dual Nature's second ability triggers, exiling the token Molderhulk.
10. Resolve the token Molderhulk's trigger from step 7, returning a Swamp from your graveyard to the battlefield.
11. When the Swamp enters the battlefield, Cloudstone Curio triggers; choose not to return anything to your hand.
12. Resolve the nontoken Molderhulk's trigger from step 4, returning a Forest from your graveyard to the battlefield.
13. When the Forest enters the battlefield, Cloudstone Curio triggers; choose not to return anything to your hand.
14. Repeat.

This intricate loop turns the graveyard-dredging power of Molderhulk and the life-giving sacrifice engine of Overgrown Estate into an endless chain of creature entries. By leveraging Dual Nature to constantly clone Molderhulk while using Cloudstone Curio to bounce the original back to your hand before its token copy gets exiled, you generate a perpetual cycle of entering and leaving the battlefield. Along the way, the lands you sacrifice to keep the mana flowing are immediately brought right back to the battlefield by Molderhulk's landfall triggers, fueling an infinite storm count and endless life.