Jin-Gitaxias (Serial Numbered)

Ward 2
Whenever you cast a noncreature spell with mana value 3 or greater, draw a card.
3U: Exile Jin-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.
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The Great Synthesis
(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 The Great Synthesis.
[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 The Great Synthesis, then return it to the battlefield (front face up).