@Riot- Can Nami PLEASE Get a New Passive?

I main Nami and I absolutely love her. Everything about her is fine right now I believe but omg her passive is almost useless.

Nami essentially relies on her Q for escapes if anything happens, even for the escapees. If she fails to land her Q she is literally a fish out of water and fails as a support. Yes, her current passive gives a slight movement speed but it doesn't provide anything beneficial to the battle in the long term. There are loads of supports that provide better escapes for their adcs.

Janna- Her passive provides a constant movement speed plus her Q is a lot easier to land than Nami's. Braum- Tanky, easier to land his Q and he has his W and E to rely on. He is fine if left behind, he can slow the enemy down enough for the adc to escape. Leona- So many cc. Tank again. No problem. Thresh- Mostly tanky. Provides an instant escape with his W if his adc gets caught out. Morgana/Lux- Their Qs are 2 seconds of binding plus they both provide shields.

I have an idea to make Nami a bit more.. reliable/threatening when it comes to the battlefield.

Remove her current passive and add stacks to it. Perhaps stacks reliant on her Q. "Every time Nami lands her Q on an enemy champion, she gains stacks of Tidal Charge. At 20 stacks Nami gains additional boosts:

Aqua Prison: Nami sends a bubble towards targeted area, dealing magic damage to enemies upon impact, revealing them and suspending them for 2 seconds. Ebb and Flow: Allied heals and enemy damage increased by 10 (+30% AP) Tidecaller's Blessing: Nami empowers an allied champion for 12 seconds or 6 basic attacks. Tidal Wave: Nami summons a tidal wave that moves in a broad line and deals magic damage to enemies it comes into contact with, briefly knocking them up and then slowing them. The slow duration increases based on how far the tidal wave has traveled, with a minimum duration of 4 seconds and a maximum duration of 8 seconds.

Each successful landing of Aqua Prison gains a total of 5 stacks and all stacks are lost after casting the first ability once 20 stacks have been reached"

Or something along those lines perhaps. Of course, landing a Q on two champions would only count as 1 landing, thus 5 stacks (meaning you'd have to land 4 Qs total to get 20 stacks).

Feel free to shoot this down or whatnot, just thought of a brief idea about a new passive that would make her more threatening (or viable in team fights or escapes).