Lissandra Rework!

They've already given info on it

Champions that dies within a few seconds of Lissandra damaging them become a frozen statue which slows the surrounding area before shattering for magic damage.

Still being worked on. Could change but after putting this much effort into this new passive another change is unlikely. It will probably be a few more patches before it arrives on PBE.

I heard it's already sortta confirmed, they're just waiting for the "artist" do to the visuals

I hope that the will release her passive sooner ! <3