Rise of the Immortal Black Dragon King

As most of you know, I will be writing my original fic. It will probably start in December or January, so I am stocking up on abilities. You can suggest any powers that you think would be good. Overpowered skills are welcome. Please do not just copy and paste from other fics. Also suggest names for the abilities if you can. There will also be demonic clans like in the High School DxD devil faction, so I need suggestions for their bloodline abilities as well. It would help me a lot if you guys could assist. Any suggestions are welcome. Please leave your suggestions in the comments. Thank you in advance.