[Ore Gaze] at 398% str = 99.5% loot chance.

Amber cast speed shards allow you to drop [Natural Talent] for [Streamline] or [Augur Secrets]

Helminth options:
Ensnare + Magus anomaly spam allows you to save on Petrify casts by grouping tons of enemies into petrify range first
Nourish gives damage boost and energy boost to sustain Petrify spam.