Again depends on how you specify your vs thread.. In raw strength surely it can be seen as part of his skill, but it is also a disadvantage. The fact is he had the bodies and seals prepared some time before the war, so he could theoretically use them as summons anywhere at any time, but of course he couldn't summon whoever you compare him with

So yeah it somewhat counts.. It's a cheat skill sadly.. Don't blame others than Kishi for it xD