Gembomb
From HGWiki
Caster Level: Bard 5
Innate Level: 5
School: Evocation
Descriptor(s): Positive (loot breaking)
Component(s): Verbal, Somatic
Range: Medium
Save: Reflex 1/2
Spell Resistance: Yes
Area of Effect/Target: Huge
Duration: 1 Turn / Level
Description: Sets a magical trap field at the target point which will explode in a Huge radius if an enemy enters, doing CLd4 Positive damage (with a Reflex save for half).
Notes
If the trap field remains set for at least one round, it receives +(Abjuration foci * 3) SP.