Crafted Mecha Threat

Modular {x} (This creature enters the battlefield with {x} +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)
"So, at its core, it's a gelled amalgam of crocodiles, bears and a few various predators. You can't change that. Aside from that we can outfit it with any accessories you want."
— Iconoclast Mechanic