I've noticed he's appeared in a couple of lists that have done well at store championships (Biggs + IA + R4 and Ello + IA + R4), including the winning list at the DarkSphere SC in London, and I'm trying to figure out what he's there for.
On the face of it, he seems useful but if I interpret the wording correctly he means you will be suffering two guaranteed hits even if he triggers. Is he a counter to HLCs? I can't see him being a good counter to TLTs because you need to cancel all the hits to avoid the damage. Is there anything else he's there for, or is he purely a damage reducer to extend Biggs' lifespan?