Can use fewer Forma if you have an Umbral Forma.

Here's the gist: Ore Gaze guarantees loot dropped at >=400% strength (with no upper limit). Rubble Heap lets you cast [Landslide] for free when you're at 1400 rubble collected. Path of Statues applies Petrify to enemies hit by [Landslide].

We don't care too much about efficiency. You'll be casting [Landslide] for free and the only other ability you'll be casting is Petrify. But you'll be picking up Energy Orbs regularly enough to keep up the strength bonus from Energy Conversion. And use a status priming weapon to keep up the bonus from Growing Power.

Duration definitely could use a bit of love so feel free to swap out Arcane Energize for Molt Efficiency if you want (the bonus to duration doesn't display correctly here). Or, if you're having trouble somehow staying alive, use Molt Reconstruct to turn your lack of efficiency into constant healing.

Feel free to also Helminth over your 2nd or 4 abilities as we won't be using them. Roar, Eclipse (after the nerf 🥲), Nourish (after the nerf 🥲), Gloomor Empower are good options for this build but are not strictly necessary so use whatever you want.

(Build inspired by: Zachmo's video )