Runepowder Barrel is a very rare Consumable that can be ignited to deal damage.
A secret concoction of smokepowder and gmomic mysticism, a single vial of runepowder is more volatile than a whole barrel of smokepowder. Who knows what this much could do...
Properties
Consumables- Single Use
Rarity: Very Rare
Weight: 16 kg / 32 lb
Price: 2500 gp
Effect
- The runepowder inside explodes when ignited, damaging everything in its vicinity.
- Automatically Critically Hits objects and environments.
AoE: 18 m / 59 ft (Radius)- (DC 12
10d8 + 40 (50~120) 
Force damage 
Dexterity saving throw to halve)
Where to find
- Found near Philomeen in Grymforge.
- Philomeen will explode the barrel if the player attempts to steal it. To circumvent this, she can be engaged in dialogue with one party member while another steals the barrel.
- Two more barrels can be found in Angleiron's Cellar during act 3, regardless of whether the player stole the initial barrel from Philomeen or not.
- However Rescue Wulbren must be completed for Angleiron's Cellar to be accessible.
Notes
- While it can be thrown as an action, the barrel does not explode when used this way – It has to be ignited to deal damage.
- However, the barrel has 4HP. If depleted with throw it will explode.
- If the barrel and the Runepowder Vial are stolen before engaging in dialogue, Philomeen will turn hostile.