Hello! Here is my list of Big Dumb Robots, but this time with spikes on their helmets. Honestly.. not much different than Titan Lords. Included the squatted mid-sized Gorillax and Lamiax from Machine Cult Defilers, and the Arachnid and Centaur chassis as upgrades for the Tough(24) Titans. Rampager gets its Rampage, Desecrator gets to order around 12-wound-or-less models. Monke does a smash.
War Dogs.. (yes they are identical to Titan Lords, shut up)
Cerastus, Questoris, and Acastus Knights
War Dog Moirax
Thunderstrike/Chainsword Despoiler doesn't currently have a unique bonus like Engine of Destruction gives, I was trying to think of an elegant way to do it without invalidating the Rampager. I have a few ideas, but nothing concrete.