Lord Roccor

Item	Chance	Quantity
Essence of the Elements Quest item	≈ 80%	2–3
Core of Elements	≈ 55%	2–4
A Crumpled Up Note	≈ 25%
Formula: Smoking Heart of the Mountain	≈ 15%
Deeprock Salt	≈ 12%
Dark Iron Residue	≈ 10%	1–10
Dark Iron Scraps	≈ 9%	2–4

Drops and chances are estimates; not all have been confirmed in the current game.