I'm really hoping we start seeing good Jades in the tournaments (or just anywhere), I've thought people have been sleeping on her for quite awhile now. She can give people serious headaches. Jade is the only character that makes me nervous when I see them selected. Not many inexperienced players pick her and good Jade's give my Sub-Zero serious shit.
I can tell you what subzeros do to make me sweat if you want. in PM. but I will tell you some random Jade strengths so you know what to expect.
Jade may not be able to mix you up UP close. But she is extremely dangerous to attack. All of her EXspecials have armor frames on them and all of them can be combo'd off of (except her command staff grab). Most of her unsafe strings can be made safe by cancelling into command grab which pushes the opponent far enough away they can't punish you.
Her Up+3 has ridiculous priority and beats alot of wake up options. Only really fast specials can punish it at full distance. Her Down back 2, staff overhead can be blocked on reaction from low block to high block. BUT the real strength in that move is it's beginning jump animation, and the range it has on it. Not to mention Jades staff is disjointed meaning it's not considered a part of her hurtbox.
Jade's enhanced kick can go through ICEBALL AND ICE CLONE AT THE SAME TIME. and if you're in the corner Jade can combo off her enhanced kick(or normal) into a 1,2 1,2 1,2,2 combo for like 24%. You can do a move instantly out of enhanced shadow glow. enhanced shadow glow along with Enhanced Down back 2(overhead). When you get good at calling out when your opponent will go offensive will give you a free 30%ish combo. Or they have to breaker.
Back to why the jumping animation in jade's Down back 2 (Staff overhead) is so good. It can jump over as high enough to get over projectiles. I use this move when I smell a spear or a freeze or shang shung's or even noob saibot's shadow charge coming. and Jade will hop over it and hit them even with the normal version. not to mention this move beats out sweeps because you jump over the sweep with DB2. (Sup mileena you sweeping princess).
Jade's Down3 spam is good and JUST when your opponent is finally safe to let go of block or attack you becaue you're out of range. An up3 will usually hit them out of any attempt they make once they believe they are safe from Down3 spam.
shadow kick is fast and safe on block, only punish-able by ducking w/o blocking. which if you're expecting it. gives me time to pressure with DB2/UP3 ect.
Most of her game is spacing you out and calling you out when you go on the offensive so she can counter you with her Enhanced specials and dig that 30% damage combo.
also I don't think there is a single character who can actually ZONE jade w/o being outzoned. even though her boomerangs are slow you can always negate 1 projectile with glow and throw your own projectile. even if they block your hit. You build meter from glow and the projectile. and a Jade with meter is dangerous so you're forced to approach.