The range on this seems to be smaller than most mobs' aggro radius. Havn't used it much as a high-level Warrior with archery maxxed. The only real use I see is when a Monk combines it with his Phantom line (aggro range reduction) but Throw Stone and Phantom share the same timer! 1 damage, very low range, does not produce attention-getting aggro (unless the mob's hate list is clean).
Very nearly worthless. IMHO, of course.
Edited, Jun 8th 2009 11:52am by Philliden