Blast Mine

Planted Blast Mines (Underdark).

A Blast Mine is a common type of Trap that might be encountered almost in every location of the game.

A Blast Mine is a hidden mechanism, an explosive device planted deep in the ground. Usually it is implied to cause damage to the tresspasser who proceeds into locations where their presence is obviously unwanted.

A Blast Mine triggers upon stepping on it (or close to it) while the trap is not disarmed, basically causing 2d6Fire damage. Often several Blast Mines are set close to each other, and triggering any of them causes a chain reaction of further explosions.

As the Blast Mine main damage is Explosion, triggering it might destroy nearby objects that could have been useful, like ladders, rope nettings, various filled barrels (including Smokepowder and Firewine, which might detonate and thus cause even more damage to a careless adventurer), let alone Containers and other elements of environment.

A Blast Mine can be disarmed with the help of  Sleight of Hand skill, but the interacting party member must have a Trap Disarm Toolkit in their inventory. Minimal requirement is a DC 15 Sleight of Hand check roll, but the Difficulty Class may vary depending on circumstances.

Blast Mine after it exploded or after being disarmed.

After disarming, a Blast Mine will be pictured as a bunch of inactive pieces of its shell that was previously hidden under the surface.

There are three types of Blast Mine encountered within the game. Most common are red/orange ones, causing Fire damage via Explosion. In the Underdark party might encounter turquoise variation of a Fire Blast Mine (which has slightly altered properties but the same DC for disarming). These two types won't make any further damage once they are disarmed or have been triggered. The third common type of a Blast Mine is Poison Mine, which not only explodes on triggering, but also leaves a Poison Cloud for three turns ^{[Needs Verification]} afterwards (causing all corresponding effects to those who happen to be caught in).

Blast Mines of Fire and Poison types are invulnerable to all types of magical damage (with exception for Force, which is their only vulnerability) and Slashing damage, resistant to Piercing damage, and also Sturdy. All these features together make Perception and Sleight of Hand skills quite necessary while dealing with Blast Mines (and with Traps in general).

Properties of all three types of Blast Mines are given below.

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