Disintegration

Disintegration
This Weapon has a dark, insidious power deep within. Occasionally, this power lashes out violently at enemies and attempts to disintegrate them.
 * 2-3% chance of around 450 untyped damage (Strom Lords website)
 * 500+ damage (DDOwiki contributer)
 * No saving throw to reduce damage

Disintegration Guard
This item has a store of dark, insidious power deep within. When the wearer of this item is successfully attacked in melee, this power occasionally lashes out violently at enemies and attempts to disintegrate them.
 * on-being-hit, cast Disintegrate on attacker, ~2% chance for ~490dmg, no save (EU forums)