Originally posted by deathslash
3.what feats does satannish have to say that he's a peer of mephisto?
4.does that mean that helstrom is related to dormammu?
Aside from what Zop mentioned. There are many times in Marvel that the Hell Lords are described or shown to be equal. The last one that comes to mind was in the 2007 Hellstrom mini. We were told that all the hell realms stalemate each other, all are equal in power. Marduk Kurios (Hellstrom's father) was trying to manipulate things to upset that balance. He was secretly manipulating things to assist Isis in her efforts to raise her husband Osiris ( a fallen Hell Lord). The plan of Marduk Kurios was that when Osiris returned it would upset the delicate balance between the hell realms and allow him to take advantage of that upset and take power.
That brings us to the fact that Satanish isn't related to Hellstrom. Marduk Kurios (also known as Satan) is Daimon's father. Though there are older tales where it was depicted that all the other hell Lords were "visages" of Marduk Kurios like in Defenders 100- 105. The story ark had Satan show his son his many faces
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Dormammu isn't a hell Lord, he is master of the Dark Dimension which is more like a few Hell Realms combined. On more than one occasion the Hell Lords would not face him unless it was a few of them together.