Boulder Seed

This bomb is made of volatile fluids that rapidly expand and harden when exposed to air. A boulder seed grants a +2 item bonus to attack rolls and deals 3d4 bludgeoning damage and 3 bludgeoning splash damage. When activated, the bomb fills a 5-foot cube with hardened foam, which creates a boulder as hard as wood (Hardness 5, HP 20) that pushes the primary target of Medium size or smaller occupying that space 5 feet away from you. On a critical hit, the target also falls Prone. The splash zone fills with rubble, creating difficult terrain. The "boulder" the bomb creates fails all saving throws and loses 1 Hardness per round, disintegrating into fine powder when the boulder's Hardness is reduced to 0. At that time, the difficult terrain the bomb created also disappears.