Something I was thinking of while thinking of gimmicks for a hidden project of sorts along with doing something: Why isn't there a weapon in the game that links damage that follow along a path. For example: The five-star weapon would do weak damage (Let's assume about 128 at the start of S6 at max level) but if a target is close enough, arc over and do slightly less damage of the initial blast. (77 Damage)

The weapon would have a Minor chance of Moderate Shock. Each standard upgrade would increase the chain amount:

Three-Star: Static Arc -- Arcs up to an additional 2 targets.
Four-Star: Thunder Buster -- Arcs up to an additional 4 targets.
Five-Star: Lightning Flash -- Arcs up to an additional 6 targets.

A horrible example of the mechanics of the bomb:

http://i.imgur.com/eFbmHvc.png

Black = Player
Orange = Charge area
Red = Monster
Cyan = Lightning arc

The blast radius of the bomb would be the size of a one-star bomb whereas the fuse time would be equal to the blast-bomb line. Upon detonation, it does the base damage (S5: 128) to the original target(s). After detonation, any monsters within a three tile range are inflicted with an electric arc. (S5: 77 Damage)

Monsters that are damaged by the arc have a minor chance of being inflicted with moderate shock.