Zed has rapidly increased his power in the short time he's been an immortal - the consequences of this are not always apparent.
Zed is prideful and arrogant, and while sometimes this pride may be deserved, it can often put him in trouble with older, stronger beings.
Zed, despite all of his flaws and rather... Aggressive personality is a self-proclaimed fierce protector of the innocent - those who cannot defend themselves, and those who do not know the cruelties of life... Although for how long this lingering shred of humanity remains is unknown.