An anti-Talim thread?
Talim might be top tier but she has feelings too you know...
I suggest that you study her stances in training mode.
Learn to recognize 2B+K (WC?) stance.
This stance gives her decent mixup.
When she's in WC:
It's risky for you to attack, because of WC K. (But it's all mixups and mind games. You might be able to attack if she uses something else.)
You can crouch if you expect WC AA.
You can also crouch if you expect WC Throw.
And keep your eyes open for WC A+K, which is a relatively slow low that you might be able to block on reaction.
The safest but least rewarding option is to stand tall, block, and spam either A or B in case that she tries to throw you... Or simply use WC B:B.
If she succeeds her WC throw against you, she's left back turned.
Once again, you don't want to attack. If you attack, you're gonna eat BT B, which is an unshakable stun.
The safest thing to do in general, once again, is to stand tall, block, and spam A or B.
Her BT options are...
BT B (stun)
BT G(turn around),throw.
BT A or [A] for a sucktastic 44B kind of thing.
BT B+K A+B or BT [B+K]A+B
BT 2K (Only knocks down on counter hit...lulz.)
BT K which seems to TC and TJ, but not sure.
If Talim stuns you with BT B, don't throw your controller at the TV yet. Keep an eye open. If she follows BT B with 6K, shake that stun.
...And A+B236A236B is great on block, because not only do you look badass, but people also always stop blocking before the end.
Edit: I realize that this post doesn't say how to attack Talim, but there's really not much else that you should worry about, I think...
Just stay as far away as possible and abuse Siegfried's attack where his sword does a 360 degrees low slash while he backsteps.