Whenever you cast a noncreature spell with mana value 3 or greater, draw a card.
: ExileJin-Gitaxias, then return it to the battlefield transformed under its owner's control. Activate only as a sorcery and only if you have seven or more cards in hand.
(As this Saga enters and after your draw step, add a lore counter.)
I — Draw cards equal to the number of cards in your hand. You have no maximum hand size for as long as you control this Saga.
II — Return all non-Phyrexian creatures to their owners' hands.
III — You may cast any number of spells from your hand without paying their mana costs. Exile this Saga, then return it to the battlefield (front face up).
Cast big noncreature spells to draw cards, flood your hand, then flip Jin-Gitaxias into The Great Synthesis to refill, bounce opponents' board, and free-cast your entire hand for an explosive turn. You play a draw-go control game in mono-blue, accumulating card advantage until you can unload a backbreaking Chapter III turn.
Engine that turns expensive spells into cards, snowballing advantage fast
Ward 2 plus mono-blue countermagic make it hard to remove or interact with
The Great Synthesis chapters provide card draw, a board reset, and a free-cast finisher all in one
Rewards a high-curve, spell-dense build that mono-blue control already wants
Mono-blue lacks efficient removal and struggles versus resolved enchantments/artifacts
Slow to come online; can be overrun by fast aggro or go-wide decks
Flip requires seven cards in hand and a sorcery-speed window, telegraphing the big turn
No protection if it dies before flipping, and bouncing yourself loses the front face
Keeps your overflowing hand intact before the Saga grants no maximum hand size.
Add fast mana (Sol Ring, Mana Crypt, Mana Vault, moxen) and rituals so you reach the flip earlier and explode on Chapter III. Tighten the curve toward MV3+ noncreature spells that trigger draws, and include a compact combo like Thassa's Oracle plus draw-your-deck enablers to convert the free-cast turn into a win. Round out with stronger counterspells and free interaction (Force of Negation, Pact of Negation) to protect the engine.