Lissandra's passive...needs some work

Just started playing lisandra because she seems to put all of the silver yasuo, and zed players to shame...they cant seem to deal with a champ that can ignore tornadoes every 3 secs and ignore being marked. My conclusion...I LOVE HER! I love how she plays, how her engage works, i love 99% of her! I say 99% of her because i think its gracious to even give her passive 1% of the champ. Even if i even notice i have been casting spells for free, i deffinately dont notice after 8 min, because by then i have most of my rod built and by 12 min i have rod and all the mana i could ever want. It's basically a dead passive. I mean, Syndra's doesnt really do anything until lvl 9, but once it does kick in, there is a significant change in power...and i think Lissandra is missing that

One idea i has was this: Frozen Embrace: Every time Lissandra hits an enemy champion with an ability, they acquire 1 stack of Ice. Once a champ has 3 stacks and is hit once more by her ability, she may cast her q w or e for free, regardless of its cooldown status

Ideas? annyone else feel the same way?

I WANT TO HEAR YOUR IDEAS! :D