Heliod, the Radiant Dawn is a very straightforward commander in this way, costing a fairly cheap four mana to transform him, or three mana and two life, to compleat the poor god, turning him into a twisted, Phyrexianized version of himself
might not seem like a real cost.
Only time will tell whether all of this can stand up to our old nemesis Sheoldred, the Apocalypse, or the new menace Simulacrum Synthesizer
From Aether Spellbomb to Tainted Sigil (a criminally underplayed card), you have loads of choices
GX cards were an important part of the game mechanics and significantly influenced gameplay
Cultivate always has a place in green decks, and heres the list of other ramp cards in the deck, to get more card draw, forests, mana, or creatures onto the battlefield: This ought to get the deck moving out of the gate