Legendary Items "special" stats

In one of the latest Diablo 3 patches they introduced new special modifiers on items - basically things outside the normal "+X to Y" range. Think stuff like "1% chance to cast fire nova when hit" to even "% chance for fallen enemies to drop ingredients" and even non-mechanic stuff like "leave black footprints as you walk around" on boots, for example.

Obviously it's not really high priority or anything, but it can be very cool to find stuff like that.