The continuous one? Or the one that is one time?
The one time one, you should be able to Vault out, he charges for it, if you pay attention.
The continuous one, if you dodge the 1st, just keep running around out of the small following radius and you should be fine. Although this would make you get quite far from him lol.
*Note, I havn't had him yet on this patch, so idk if anythings changed.