Isochron Scepter + Displacer Kitten + Chandra, Hope's Beacon + Emerald Charm + Lotus Field

Isochron Scepter

Displacer Kitten

Chandra, Hope's Beacon

Emerald Charm

Lotus Field

How it works

1. Activate Lotus Field by tapping it, adding three mana of any color.
2. Activate Isochron Scepter by paying 2 and tapping it, casting a copy of Emerald Charm without paying its mana cost, targeting Isochron Scepter.
3. Chandra and Displacer Kitten trigger.
4. Resolve the Displacer Kitten trigger, blinking Chandra.
5. Resolve the Chandra trigger, creating a copy of Emerald Charm, targeting Lotus Field.
6. Resolve both Emerald Charms, untapping Isochron Scepter and Lotus Field.
7. Repeat.

This loop transforms the mana production of Lotus Field into an engine of perpetual motion by anchoring an instant to Isochron Scepter. Whenever you pay to cast Emerald Charm off the Scepter, Displacer Kitten blinks Chandra, Hope's Beacon to reset her once-per-turn copy ability, allowing Chandra to duplicate the Charm. The twin resolutions then untap both your artifacts, leaving you with more mana than you started with and enabling infinite colored mana, storm count, and untaps of any permanents you control.