Requires

Hanna, Ship's Navigator must be on the battlefield. Myr Battlesphere must be in hand. Dross Scorpion must be on the battlefield. Mycosynth Lattice must be on the battlefield. Krark-Clan Ironworks must be on the battlefield. Hanna does not have summoning sickness. Mana needed:

Steps

1. Cast Myr Battlesphere by paying .
2. Myr Battlesphere enters the battlefield, creating four 1/1 Myr creature tokens.
3. Activate Krark-Clan Ironworks by sacrificing Myr Battlesphere, adding .
4. Myr Battlesphere dies, triggering Dross Scorpion, untapping Hanna or any other artifact.
5. Repeat from step 3 for each of the four Myr creature tokens.
6. Activate Hanna by paying and tapping it, returning Myr Battlesphere from your graveyard to your hand.
7. Repeat.

Results