Mega Bomb
An explosive additive turns a bomb into one thrown without an attack roll, catching everyone in the burst as if each were the primary target.
You can add a highly explosive additive to an alchemical bomb to turn it into a mega bomb. Throwing this bomb takes a 2-action activity instead of a Strike. This isn't a Strike, and you don't make an attack roll. The mega bomb explodes in a 30-foot burst within 60 feet. It deals damage as if each creature were the primary target, with a basic Reflex save. On a failed save, a creature also takes any extra effects that affect a primary target (such as Off-Guard from Bottled Lightning). Though all targets in the area take Splash damage as primary targets, there is no further splash beyond that area.
Level 20 · Type Class