No mercy, only death.

"With The Fallen gone we cannot return order to our army, but fate has yielded its reward: a new world to call home. We live among its people now, hiding in plain sight, but watching them in secret, waiting, plotting. I have witnessed their capacity for violence, and though we are worlds apart, like us, there's more to them than meets the eye. I am Lord Straxus, and I send this message to any surviving Decepticons taking refuge among the stars. We are here. We are waiting. "

The Fallen's first apostle, Straxus was sent to Earth to track down and destroy the Seekers loyal to the Primes. During World War II, he pursued his prey through Siberia, falling through the ice into a frozen lake and entering stasis. Offline but not unaware, Straxus sensed Autobots and Decepticons as they arrived on Earth. For a brief time he sensed the spark of his former master, but it was soon snuffed out. Discovered by humans and thawed out, Straxus thanked them for their accidental assistance with a swift death and, taking their base of operations as his own, beckoned any surviving Decepticons on Earth or in space to join him in the new Decepticon empire.

Straxus. No-nonsense, no-negotiations, no mercy. Though his Tiger tank alternate form is outdated, his savagery in battle is timeless. His tank tread legs are something I've been trying to work into a design for a while now. They were originally on a Blitzwing design I just couldn't get to work.