User blog comment:B214/Shin DxD 1 discussion/@comment-32252462-20180719140632/@comment-33359929-20180719191549

Maybe there is no second Joker for Heaven. There's no evidence to suggest ANYTHING OF THE SORT.

And besides. Tobio's Balance Breaker has an evolved level, while Dulio's does not. Furthermore, as a human, I'm inclined to believe that Tobio would train a lot harder to make up for the fact that he is, in fact, human, rather than Dulio (your God, it seems) which would give him an edge over Dulio.

Plus no other member of Dulio's team, as far as we know, possess Longinus-Class Sacred Gears, which makes Dulio the only super-powerful member of his Team. WHICH IS A VERY BAD THING, FANBOY.