Jin-Gitaxias // The Great Synthesis + Time Stretch + Zealous Lorecaster

Jin-Gitaxias // The Great Synthesis

Time Stretch

Zealous Lorecaster

How it works

1. At the beginning of your precombat main phase, The Great Synthesis triggers, putting a lore counter on it. Its third chapter ability then triggers, causing you to cast Time Stretch and Zealous Lorecaster without paying their mana costs, and then exiling The Great Synthesis and returning it to the battlefield as Jin-Gitaxias.
2. Resolve Time Stretch, causing you to take two extra turns after this one.
3. Resolve the Zealous Lorecaster spell. When it enters, it triggers, returning Time Stretch from your graveyard to your hand.
4. Activate Jin-Gitaxias by paying 3, exiling it and returning it to the battlefield as The Great Synthesis.
5. When The Great Synthesis enters with a lore counter on it, its first ability triggers, causing you to draw cards equal to the number of cards in your hand and not have a maximum hand size for the rest of the game.
6. Move to your first extra turn. At the beginning of your precombat main phase, The Great Synthesis triggers, putting a lore counter on it. Its second chapter ability then triggers, returning all non-Phyrexian creatures (including Zealous Lorecaster) from the battlefield to their owner's hand.
7. Repeat from step 1 during your second extra turn

This loop achieves a devastating lock by letting Chapter III of The Great Synthesis cast both Time Stretch and Zealous Lorecaster for free. As Zealous Lorecaster enters, its triggered ability immediately retrieves Time Stretch from your graveyard, ensuring you have your extra turns secured while Jin-Gitaxias gets reset via its activated ability. When The Great Synthesis eventually returns to the battlefield, its first chapter refills your hand and its second chapter bounces Zealous Lorecaster back to your hand, setting up the entire sequence to repeat indefinitely.