Ultron's abilities vary with each redesign, but typically include superhuman strength and durability, the power of flight, and various offensive weapons such as concussion blasters, radiation emitters and his "encephalo-ray", which plunges its victims into a deathlike coma. The latter ray also allows Ultron to mesmerize and outright mind-control his victims, or implant subliminal hypnotic commands within their minds to be enacted at a later time. Ultron's outer shell is usually composed of Adamantium, rendering it almost totally impervious to damage; however, his internal mechanisms are generally less durable and more easily damaged. Ultron's Adamantium forms have proven vulnerable to molecular rearrangement devices and the metal-destabilizing ore known as Savage Land Vibranium ("anti-metal"). Some Ultron models feature tractor beams and energy absorption capabilities. Most Ultrons are powered by a small internal nuclear furnace, and incorporate a "program transmitter" which can beam part or all of Ultron's programming into remote locations such as computers or alternate robotic bodies. Ultron can often control other machines remotely even if he has not transplanted his consciousness into them. One recent Ultron model developed hive-mind technology, allowing him to animate and control hundreds of alternate Ultron bodies at the same time, becoming a robotic one-man army. Ultron is one of the foremost robotics experts on Earth.
Ultron sometimes employs a "molecular rearranger" (which renders Adamantium temporarily malleable) for purposes of reconstructing or modifying his physical form. He has designed, built and wielded a wide variety of high-tech tools, weapons and accessories over time, such as his androne-mutation gas and his "roboticks", insect-like drones that devour human flesh. Ultron has created a variety of robots and androids over the years, and while the more sophisticated ones typically turn against him sooner or later, they all feature subliminal programming which allows Ultron to manipulate them if need be (most notably a subliminal command to rebuild Ultron if he is destroyed). This subliminal programming was unwittingly passed down to the artificial life-forms created by Ultron's creation, Alkhema, making them subject to Ultron's influence as well.
http://marvel.com/universe/Ultron
"Among the winners, there is no room for the weak"
The most fearsome and powerful of the Dinobots, Grimlock would gladly usurp Optimus Prime's role as Autobot Commander if he thought he could get away with it. For now, he's happy to tear into the enemy Decepticons whenever he can and wait for a more opportune moment to try for the leadership. He can be cold and merciless, and shows contempt for those he views as weak, such as humans and even some fellow Autobots. But he is a valiant warrior and his actions command respect from all who are witness to them, both friend and foe.
Grimlock's strength is second only to Optimus Prime's, and even that is arguable. In Dinobot mode he can use his powerful jaws to snap in two virtually anything that comes between them- from a 4-foot diameter steel cable to a Decepticon leg. In Autobot mode he wields an energo-sword, which can slice a 2-foot thick concrete wall with one sweep of its crackling blade. He also uses a double-barreled self-propelled rocket launcher.
Other than arrogance and lack of speed, Grimlock has no significant weaknesses.
http://www.seibertron.com/vsd/character/grimlock/67/
Poll