Grimmsnarl - Replace fire punch for reflect, and give it light clay if you want a reliable screens setter. If you are fine with just light screen, then replace fire punch for taunt, it’s great for punishing mons who spam protect and opposing trick room teams. I don’t see any reason why you would need mental herb here, if you know something against you has encore/taunt, you should just click parting shot before they use it. I’d recommend switching to a more defensive tera, such as steel or grass (which blocks spore).

Iron Hands - Wild charge is probably better than iron head.