He was once a normal man, but something changed when he was drafted in the army...
He went into combat, and he killed one of his enemies. When he did that, he became somehow stronger. He felt a burst of power, he killed another enemy soldier, he got stronger, and stronger, every kill, he got stronger, until he wiped out every one of his enemies. He felt so strong. He permanently enlisted into the army, and with every kill, he became stronger. It eventually became noticeable, and he was diagnosed. An incredibly rare, magic disorder known as KSD (Kill Streak Disorder) that makes the user stronger every time they kill someone. He quickly ranked up in the military, until he eventually became the strongest living being in his universe. So he used his power and went to another. He joined other militaries, and became stronger and stronger. He started to notice strange physical changes, like glowing. He eventually became strong enough and unlocked powers, like teleportation and telekinesis.
He is very strong, and will work, for the right price, that is.
