Energy Cannon

"The G-tier ones are merely semi-finished products. Since their genes have been infected by a foreign strand, they would mutate halfway into a beast, losing all chances of returning to their human form. They're pretty weak to be honest, around the strength of an ancient warrior, maybe even less. All in all, they're worthless and would be considered a failed bunch by the researchers."

"F-tiers can regenerate parts of their bodies that had been wounded in battle by stimulating the release of healing substances. These ones, on the other hand, stand on par with a beast general or even a king. They are, in other words, a great leap in terms of durability as well as combat capability from the former tier! However, the setbacks are also pretty clear. They'd lose their human intellect and the regeneration process can only be done after the battle, when the body is somewhere safe."