Thank you for the advice, it's very helpful! Unfortunately playing well and rolling well are not my two best traits at AoS at the moment but I like to think I'm learning (I only really started this summer).
Do you think a second maw-krusha would help, force him to prioritize or too much of a point sink? I been wanting to get a second MK anyway.
Just so happens that I have two rock lobbers on the way that I ordered a couple weeks ago. I didn't even think about spear chukkas and I just looked them up and they sound like they'd be amazing. Being a big fan of goblins and artillery, I'll stock up on 2 or 3. Hell maybe a couple doom divers for good measure.
Just for fun I may try a weirdfist against him while including a second weirdknob, a moonclan grot shaman, some Quicksilver Swords, as well as a Rogue Idol despite his unbinding and reroll shennanigans. I really love the model and a potential Foot of Gork on a 7 and a Curse of Da Bad Moon on a 5.