You set the device on the ground and hope that it detonates when you want it to.
|Lvl 4||40 gp|| ||Lvl 19||4,200 gp|
|Lvl 9||160 gp|| ||Lvl 24||21,000 gp|
|Lvl 14||800 gp|| ||Lvl 29||105,000 gp|
Alchemical Item: VolatileFormula Cost: 160 gp
Key Skill: Arcana or ThieveryTime: 15 minutes
Power (Fire) Consumable (Minor Action)
Place the clockwork bomb in your space or in a square adjacent to you, and decide how many rounds pass before the bomb goes off (6 rounds maximum). Each round, at the start of your turn, move the clockwork bomb one square in a direction of your choosing and roll a d6. On a roll of 6, the bomb detonates prematurely. If the clockwork bomb is hit by an attack (the bomb has the same defenses as its user), it also explodes. When the bomb detonates, make an attack: Area burst 1 centered on the bomb's space; targets each creature in burst; +7 vs. Reflex; 1d10 fire damage.
Level 9: +12 vs. Reflex; 2d10 fire damage.
Level 14: +17 vs. Reflex; 3d10 fire damage.
Level 19: +22 vs. Reflex; 4d12 fire damage.
Level 24: +27 vs. Reflex; 4d12 fire damage.
Level 29: +32 vs. Reflex; 5d12 fire damage.
Published in Eberron Player's Guide, page(s) 100.