Jin-Gitaxias // The Great Synthesis + Time Stretch + Eternal Witness
Jin-Gitaxias // The Great Synthesis
Time Stretch
Eternal Witness
LockNear-infinite turns
How it works
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 Eternal Witness without paying their mana costs, and then exiling The Great Synthesis and returning it to the battlefield as Jin-Gitaxias.
Resolve Time Stretch, causing you to take two extra turns after this one.
Resolve the Eternal Witness spell. When it enters, it triggers, returning Time Stretch from your graveyard to your hand.
Activate Jin-Gitaxias by paying 3, exiling it and returning it to the battlefield as The Great Synthesis.
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.
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 Eternal Witness) from the battlefield to their owner's hand.
Repeat from step 1 during your second extra turn
This clever loop uses the third chapter of The Great Synthesis—the back face of Jin-Gitaxias—to cast both Time Stretch and Eternal Witness entirely for free. As Eternal Witness enters the battlefield, its triggered ability loops Time Stretch right back to your hand, while Jin-Gitaxias can be transformed back into its Saga form by paying {3}{U} to reset the cycle. Because Time Stretch grants you two extra turns, you have ample time to clear away your own Eternal Witness with the Saga's second chapter ability and set up the next explosive chapter III, locking your opponents into an endless sequence of extra turns.