As part of the Frozen Orb's animation, it spews ice in all directions, supposedly damaging enemies it touches. I wonder how exactly this works. Does it deal more damage if the orb hits the enemy directly? Does it deal more damage if more of the tiny shards hit the enemy? Can it hit the same enemy multiple times?
In one specific case, I've noticed that when enemies have the Missile Dampening affix, that Frozen Orbs last a very long time. They seem to travel for a set distance rather than for a fixed amount of time. The whole time they're moving, they still spew ice, but it's hard to tell if it's still damaging the enemies for its entire lifetime or if it's just an annoyingly long death for the spell.