Grong is already impressively large. In fact, I don't think our Embiggifier is going to fit around his noggin without some modification.
I'll require an ample supply of ore to make the necessary adjustments, but we're in luck. The goblins nearby have already done the work of mining it; we just need to take it off their hands!
Secure an ample amount of Azerite-infused ore, and we'll be back in business!