When Vorinclex enters, search your library for up to two Forest cards, reveal them, put them into your hand, then shuffle.
: ExileVorinclex, then return it to the battlefield transformed under its owner's control. Activate only as a sorcery.
(As this Saga enters and after your draw step, add a lore counter.)
I — Mill ten cards. Put up to two creature cards from among the milled cards onto the battlefield.
II — Distribute seven +1/+1 counters among any number of target creatures you control.
III — Until end of turn, creatures you control gain ": This creature fights target creature you don't control." Exile this Saga, then return it to the battlefield (front face up).
Drop Vorinclex on turn five as a trampling beater that ramps you two Forests, then later sink to flip him into a Saga engine that cheats fatties into play, fattens your board with +1/+1 counters, and turns your creatures into a fight-based removal squad. You play a classic mono-green ramp-into-threats curve, snowballing your mana and your board until you crash in with trample.
Built-in ramp/fixing: the ETB grabs two Forests every time he hits the battlefield, smoothing your land drops.
Flip side is a self-contained value engine—reanimation, counters, and repeatable removal in one card that re-enters front-face up to do it all again.
Trample and reach make the creature side a relevant attacker and blocker on its own.
Mono-green is resilient to color screw and has the format's best ramp and big-creature payoffs.
The transform costs a hefty and is sorcery-speed, so you need huge mana to unlock the Saga.
Mono-green struggles with interaction—little instant-speed removal and almost no counterspells.
Spot removal on the creature before you flip wastes your investment; he's a target.
Saga chapter I mill is variable—you can whiff on hitting creatures to reanimate.
Legendary Creature — Phyrexian Praetor // Enchantment — Saga
: This creature fights target creature you don't control." Exile this Saga, then return it to the battlefield (front face up).