Overview
Mirror Entity plus Wirewood Symbiote can generate infinite mana with any dork that taps for three or more. This does make all your creature 1/1, so be careful.
Outside of that combo, the deck can generate enough make an army of huge attackers via Entity or Ezuri, Renegade Leader.
Generous Patron turns Obuun's landfall trigger into "draw a card," assuming your opponents have one or more creatures & you're willing to buff them.
I'm thinking of this as a higher-powered casual deck.
Obuun Elves!
Approximate Total Cost:
Entity Symbiote Combo
You need an active Priest of Titania or other creature that taps for three or more mana along with Mirror Entity & Wirewood Symbiote. Tap the dork for 3. Use 1 to activate Entity's ability. Symbiote is now an Elf & can return itself. Activate Symbiote to target the dork, returning itself. Recast Symbiote for a single green. You have a mana left over & can repeat this process, netting 1 mana (or more) each time. You can then make your creatures arbitrary huge via Entity.
Obuun Tricks
Why run Obuun? Our new commander offers a bit more utility for Naya Elves than Mayael the Anima. With Generous Patron, we can target our opponents creatures with Obuun's landfall trigger, gaining a card each time. We can target Selvala, Heart of the Wilds or Marwyn, the Nurturer for extra mana. If all else fails, we can use these triggers to protect low-toughness creatures from damage-based removal or pursue a beatdown plan with Obuun. Fetchlands, Oracle of Mul Daya, Skyshroud Ranger, Radha, Heart of Keld, Wood Elves, & so on facilitate additional landfall triggers.
Possible Cuts
I'm not thrilled with Gyre Sage, Grand Warlord Radha, or Molten Echoes (because of double red) in solo testing so far.