Codie, Vociferous Codex + Galvanic Alchemist + Heartstone

Prerequisites

• Codie does not have summoning sickness.
• Galvanic Alchemist is paired with Codie.
• You have at least one instant and/or sorcery card in hand.

Steps

1. 1Activate Codie by paying and tapping it, adding .
2. 2Activate Codie by paying , untapping it.
3. 3Repeat as desired, skipping step 2 on the final iteration.
4. 4Once you have an arbitrarily large number of Codie triggers, cast any spell by paying its mana cost, reduced by the added in step 1.
5. 5Codie triggers for each time you activated its ability.
6. 6Resolve 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.
7. 7Repeat step 6 for each remaining trigger.
8. 8You may also repeat this combo for each instant and/or sorcery card in your hand as mana permits, and on subsequent turns.

Effects

• Cast a subset of spells in your library