User blog comment:Тостер/Prometheus/@comment-3221148-20161022190531/@comment-3221148-20161022210813

Not Mary Sue, just Worf Effect + Donut Steel effect. He's basically a one-arc villain that needed his "time to shine" and be extremely dangerous, same with Bloom.

I mean, look at Deathstroke doing the same thing with the JLA roster once.

Heck, Deathstroke would be a Sue, if he wasn't the Worf half the time.