High-Speed Poison Shadow Build: Advice Needed!

Hi exiles, I’m planning a Shadow poison build with speed‐clear in mind.

- Looking for the most efficient skill + support combos for rapid leveling.
- Which ascendancy—Assassin or Saboteur—scales poison best for quick maps?
- What budget‐friendly uniques or rares should I hunt early to keep clear speed high?
- Any PoB links or personal tips on juggling damage and mobility would be hugely appreciated.