NEVER thats the short answer all of her matchups are bad and she struggles vs ranged
and the ones she "Wins" can go very wrong if you int a little too much as the guide says its a 4fun pick to show off to your friends not really a good ranked pick the strength of this pick comes out of your ulti and roams (the main reason why rushin eclipse since its a cheap ad item that can allow you to fight champs pretty easily)
Sidenote do not take this very seriusly and as very usefull guide most of the "knowledge" i have is based around normal games and trolling my friends with it
Use this guide more as a What to do into this champion and general tips

take this as your standar combo when you are 3 you W Q (Just like sylas E+W) and auto W pta proc and Then E this works best into melee champions than ranged Use this combo as a way to sustain in lane/get damage
Another comobo but more situational is Q into E this one works better in toplane but you can still do it in mid you can use this level 2 to try and get some cheesy dmg if they're near a wall

If you hit your ult DO NOT instanly W your W is a dash and bite the Dash part can save you out of important spells or allow you to chase better
YOU CAN WARD HOP it seems a lot of people forgot or dont remember this you can place a ward and hop into it its not like lee's or jax hop but still pretty useful to remember
And as a final tip play with your jungler you can heal of objectives and take them pretty fast

WARNING TESTING IS VERY LIMITED
This is the ultimate Trolling experience you can give your friends DO NOT PLAY SILY GOOSE BRIAR UNLESS YOUR INTENT IS MAKING YOUR FRIENDS MAD
Ap briar requires a lot of things to go right your trades can go very bad and your damage is dependant in terrain inconsitent and very int but funny as all hell your best bet is to play this botlane with an anivia adc and you as a cc bot