lightning orb! it is not working?

lightning orb! it is not working?

you know hw the new lightning orb has that chance on hit to cast an ability! well i made one with a 25%(at lvl 4) to cast a chain lightning! yet it nvr did! any ideas? the chain lightning has no mana too!

ok well the buff and the dam is going though! but i changed the artwork for the chain lightning and there is nothin coming out? any ideas or a chain that is black that can work?

I have a question: Is for an item (like Maelstrom in Dota) or a skill?

oh sorry, it is a skill so it is wierd. it shows all the info for the ability that you are casting and only shows the research part for the orb ability. wierd huh?