Activate a Swamp and Forest by tapping them, adding .
Cast Molderhulk by paying .
When Molderhulk enters the battlefield, it, Necroduality and Cloudstone Curio trigger.
Resolve the Cloudstone Curio trigger, choosing to return nothing to your hand.
Resolve the Necroduality trigger, creating a token copy of Molderhulk.
When the Molderhulk token enters the battlefield, it and Cloudstone Curio trigger.
Resolve the Cloudstone Curio trigger, returning the nontoken Molderhulk from the battlefield to your hand.
Resolve the token Molderhulk's trigger, returning a Swamp from your graveyard to the battlefield.
When the Swamp enters the battlefield, Cloudstone Curio triggers, returning another Swamp from the battlefield to your hand.
Resolve the nontoken Molderhulk's trigger from step 4, returning a Forest from your graveyard to the battlefield.
When the Forest enters the battlefield, Cloudstone Curio triggers, returning another Forest from the battlefield to your hand.
Activate Land's Edge twice by discarding the Swamp and Forest, dealing 4 damage to any player or planeswalker.
Repeat.
This clever loop uses Molderhulk's graveyard-recursion ability as a perpetual engine, fueled by its cost-reduction to cycle endlessly for just two mana. Whenever Molderhulk enters the battlefield, Necroduality steps in to double your investment by spawning a token copy, while Cloudstone Curio expertly bounces the original back to your hand so you can recast it. Meanwhile, the lands brought back by Molderhulk's landfall triggers can be fed directly into Land's Edge to burn out your opponents, turning a recursive creature loop into an immediate game-winning finisher.