Andvari
Hero
I was thinking something like Gandalf enchanting an acorn with fire and throwing it to explode.

Fire Seeds (Priest Spell)
The fire seeds spell creates special missiles or timed incendiaries that burn with great heat. The spell can be cast to create either fire seed missiles or fire seed incendiaries, as chosen when the spell is cast. Fire seed missiles: This casting turns up to four acorns into special grenadelike...