Rona, Herald of Invasion // Rona, Tolarian Obliterator + Mox Opal + Retraction Helix

Prerequisites

• Rona does not have summoning sickness.
• You control at least three artifacts.

Steps

1. 1Activate Mox Opal by tapping it, adding .
2. 2Cast Retraction Helix by paying , targeting Rona.
3. 3Activate Rona by tapping it, returning Mox Opal from the battlefield to your hand.
4. 4Cast Mox Opal by paying .
5. 5Rona triggers, untapping itself.
6. 6Activate Mox Opal by tapping it, adding one mana of any color.
7. 7Repeat from step 3.

Effects

• Infinite colored mana
• Infinite storm count