Can't make a new champ without mobility and invisibility because it is really fun to play against and very easy to balance. Look forward to the new champ (and getting outplayed by invisibility).
Don't worry riot knows what they are doing. It will be garbage or will just needs 5 nerfs like 
to actually be playable against.
You do realise she gotta steal the element she wants from the actual terrain ?
Stealth is only possible with a bush to steal nature/
Ice comes from the river
Earth comes from wall and general terrain.
Her hard CC is actually limited to her ult and the river while stealth requires a bush nearby.
