Time Bombs (P4, T4)

Level12

You create three time bombs (each an explosive about the size of a datapad) that each instantly adhere to a floor, wall, or similar surface. Each time bomb appears at a grid intersection of your choice within the spell’s range, but each must be at least 15 feet away from each other. As you create each time bomb, you also set a countdown timer for it, ranging from 2 to 10 rounds, choosing a different number of rounds for each explosive. At the end of each of your turns, reduce the number of rounds remaining for each time bomb’s countdown timer. If a countdown timer reaches 0, that time bomb explodes, dealing @[6d8 fire and piercing][roll 6d8 as damage for 'Time Bombs'] damage to creatures in a 10-foot-radius burst (Reflex half). As a swift action, you can trigger a time bomb before its countdown timer reaches 0, but its damage dealt is reduced by half.

A time bomb can be disabled using Engineering or Mysticism as a standard action, and its disable DC equals 10 plus 1-1/2 × your caster level. A time bomb has hardness 10 and a number of Hit Points equal to 5 + your caster level. If reduced to 0 Hit Points, a time bomb is destroyed harmlessly.