Requires

Molten Echoes must be on the battlefield. Cloudstone Curio must be on the battlefield. Akki Rockspeaker must be in hand. "Goblin" or "Shaman" chosen with Molten Echoes. Mana needed:

Steps

1. Cast Akki Rockspeaker by paying .
2. Akki Rockspeaker enters the battlefield, triggering itself, Cloudstone Curio and Molten Echoes.
3. Resolve the Akki Rockspeaker trigger, adding .
4. Resolve the Cloudstone Curio trigger, choosing to return nothing from the battlefield to your hand.
5. Resolve the Molten Echoes trigger, creating a token copy of Akki Rockspeaker with haste.
6. The Akki Rockspeaker token enters the battlefield, triggering itself and Cloudstone Curio.
7. Resolve the Akki Rockspeaker trigger, adding .
8. Resolve the Cloudstone Curio trigger, returning the nontoken Akki Rockspeaker from the battlefield to your hand.
9. Repeat.

Results