Rune of Blasting

Evocation [force]Tier: 2Components: RuneCasting Time: 1 minuteRange: TouchTarget: Object or surface bearing the runeDuration: Permanent until dischargedSaving Throw: Reflex halfYou speak the word, and hurl the little stone down the hallway, shielding your eyes from the blast.

Once wakened, this rune explodes when it takes damage or suffers a hard impact. The explosion deals 3d6 bludgeoning damage and takes the shape of a 10' cube. If the blast is centered on a square (and not an intersection), roll 1d4 to see which way the blast radiates. If a target takes damage from multiple blast runes simultaneously, each rune after the first only deals 1d6 damage (no save).

If you take damage while holding a wakened blast rune, it has a 50% chance to detonate.

Dwarf war wizards often mark their crossbow bolts with blast runes.

Runic Power:The explosion deals 6d6 damage, and the rune is even more sensitive. An overcharged blast rune will detonate immediately if fired from a bow or crossbow, dropped from waist height, or if you pat your pocket a little too hard.