Aura Finesse, Codie, Vociferous Codex, Galvanic Alchemist, and Power Artifact

Prerequisites

• Aura Finesse in hand
• Codie, Vociferous Codex on the battlefield
• Galvanic Alchemist on the battlefield
• Power Artifact on the battlefield
• available

Steps

1. Cast Aura Finesse by paying , attaching Power Artifact to Codie and drawing a card
2. Activate Codie by paying and tapping it, adding
3. Activate Codie using the ability from Galvanic Alchemist by paying , untapping it
4. Repeat
5. Once you have an arbitrarily large number of Codie triggers, you may cast any instant or sorcery spell by paying its mana cost
6. Codie triggers for each time you activated its ability
7. Resolve the first trigger, causing you to exile cards from the top of your library until you exile an instant or sorcery spell with lesser mana value, and allowing you to cast that spell without paying its mana cost
8. Repeat step 7 for each remaining trigger

Results

• Infinite red mana
• Infinite green mana
• Infinite black mana
• Infinite white mana
• Cast a subset of spells in your library