Let's get the answer to the obvious question out of the way first shall we?
Molimo? Why not run Multani, Yavimaya's Avatar?
Because this is the first EDH deck I ever built (in 2010), it's the one I'm pimping out and to replace the commander after all this time just didn't feel right. I acknowledged my simultaneous desire to play better Magic by promising to swap if I opened a foil Multani at the Dominaria prerelease. I didn't even open a normal one in five events plus prizes, so that solved that as far as I'm concerned.
So yeah, this is my Molimo deck, the one that kickstarted my love of this format. It's full of pet cards like the Fog variants and the morph package, weird meta calls like Tranquil Path because my wife runs a Hanna, Ship's Navigator deck with roughly a billion Arrest variants and Bind, because nobody expects the mono-green player to say 'in response'.
The general gameplan is I ramp a bit, play some stuff out that's fairly innocuous, let everyone else fight for a bit then drop a giant hasty Molimo followed by Overwhelming Stampede and kill the table. If I'm really lucky, I also get to Genesis Wave for 20 at some point, which even if I lose makes me happy. Why yes I am a massive Timmy, how did you know?
Obviously the goal is still to make a pretty decent deck, I'm just less fussed about 100% efficiency in this one y'know? Also as I said I'm pimping this one, so anything pre-Urza's or only available in a precon is right out. I'm hoping Song of the Dryads makes it into foil some day, and the Killer Bees will be Unyaro Bees when I get around to it. Until then, it's the German version because Killerbienen is fun to say.
Link to MTGS thread
Out: Primeval Titan
In: Hour of Promise
Out: Vernal Bloom
In: Nissa, Who Shakes the World
Out: Arachnus Spinner, Arachnus Web, Saber Ants
In: Kenrith's Transformation, Questing Beast, Return of the Wildspeaker
Out: Tranquil Path, Killer Bees, Throne of the High City
In: Back to Nature, Unyaro Bees, Dryad Arbor