User blog comment:B214/Shin DxD 1 discussion/@comment-79.25.64.21-20180813153423/@comment-79.226.101.152-20180813215708

It is confirmed that the Beelzebub line can control bugs, as Shalba was able to control Bees. What the other Devil Kings can do, we don't know yet.

My theory is, that Lucifer probably had some kind of light powers. It is implied that, in his DxD L form, Vali unleashes the full potential of the Lucifer bloodline wich is only referred to as the "Lucifer power" and synchronises it with Albion's power. After he unlocks the Lucifer power and syncs it with Albion's power, all of his previous abilities get some sort of light attribute, for example his Satan Compression Divider being a "burst of light". It would fit, because Lucifer literally means Lightbringer and his title "Morning Star" was even mentioned multiple times in the series. Heck it's even in the chant for DxD L.

As for the Leviathan bloodline, power over the oceans would be really fitting aswell, because the Leviathan is said to be a giant Sea Serpent that lives in the ocean, but I think it's already been confirmed, that the power to control the seas is part of Nereid Kyrie. I'm not shure, though.

As for Asmodeus, I have no idea what kind of power he would have, but no gives a shit about Asmodeus, anyway lol.