Last game when fighting a certain guy my character taking damage from ionic spark but none of the character on his side have it, i check on his storage zone and one of his character got one on it. Close to the end of the fight i saw spark comming from this character with ionic spark..
btw it was on a 
Not sure is intended
Can confirm. I came here to report this bug too.
I built the Ionic Spark on a 2 star Gangplank, put him in storage, forgot about it, and the Ionic Spark was still zapping enemies casting spells.
It's been happening for a while now. Think it started happening during the last PBE build (the update right before being shipped to live as 9.13) as I noticed it there as well.
Hadn't noticed it with Ionic Spark (read as haven't tested it), but I have seen the same effect on Force of Nature. I would suspect that Zephyr has the same issue since it's also not dependent on the wearer's actions, but I haven't tested it yet. Perhaps it's not a bug and we should expect to see more cheerleader items in the future.
