Transformers 4 Age of Extinction Grimlock (AoE - Generations Voyager)
Grimlock (AoE - Generations Voyager):
Grimlock is the ultimate wildcard. The Dinobot leader has the power to decide the fate of Earth almost singlehandedly. His ferocious strength makes him a devastating force in battle. If that strength can be focused and harnessed for good, it could be enough to turn the tide. If not, it might be what seals Earth's doom.