>>532626418
Yes the shield has an extremely low CD if you toggle it off immediately, low enough that it will be up for the next drill, but you don't even need the shield.
You can evade out of a slam-stagger fast enough that you can start spinning before Panther can launch his drill, allowing you to clash with the drill, and Welkin doesn't get staggered when he clashes during a spin so he can just continue spinning.