What I'm getting at is that it's not like he did an I Dream of Jeannie head bob and thus it happened. It's a whole thing he has to go through to link a realm to himself and at that point it's basically incredibly special circumstances as far as what he can now do with said realm. I don't really view it as something that speaks to his overall oomph so much as a very specific thing he can pull off.
I get you on this. We’re still talking about a guy who, unlike Mephisto, goes into places, whips the universe around and MAKES it into his realm. That he can then blow the entire universe if he so chooses. One might argue that it’s his place, but he had, at one time, wandered into that place and made it his. Lather, rinse, repeat.
I'm a bit iffy on that one if only for that Satannish on other occasions is a peer of the overall grouping of netherworld lords just fine.As I understand, he creates beings like Satannish, who are ridiculously powerful in their own right, more powerful than Classic Strange, entities who have their own entreaties. Etc.