i’m not sure if this has been posted before and i know it isn’t really safe again the likes of the top 4 if they take the hit.
but you can run up when the next char is coming in and hit them with the ice beam and cancel it into the artic attack and it should guard break.
it is the ground hp ice beam.
try to hit them early and make sure you don’t hit them with the artic attack before they lose guard stun.
hope it helps.