Codie, Vociferous Codex, Chain Stasis, and Agatha of the Vile Cauldron

Prerequisites

• Codie, Vociferous Codex on the battlefield
• Chain Stasis in hand
• Agatha of the Vile Cauldron on the battlefield
• Codie does not have summoning sickness
• Agatha of the Vile Cauldron has power 2 or greater
• available

Steps

1. Cast Chain Stasis by paying , targeting Codie
2. Holding priority, activate Codie by paying at most and tapping it, adding
3. Resolve Chain Stasis, untapping Codie and causing you to pay to copy Chain Stasis, with the copy targeting Codie
4. Repeat from step 2
5. Once you have an arbitrarily large number of Codie triggers, you may choose not to copy Chain Stasis and cast any instant or sorcery 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 6 for each remaining trigger
9. You may also repeat this combo for each instant and sorcery card in your hand as mana permits, and on subsequent turns

Results

• Cast all instants and sorceries in your library with mana value less than spells you cast
• Infinite black mana
• Infinite green mana
• Infinite magecraft triggers
• Infinite red mana
• Infinite white mana