This chapter was fire imo
I guess a good assumption would be that every Gorosei has a summoning circle they can use, judging from the number 5 on Saturn's.
Ofc, his having a 5 on it will lead to some big brain powerscaling discussions:laughmoji:
Re: summoning circle - is it safe to assume Saturn has a limited area within which he can do it? Assuming he is the one that is casting it and it isn't remotely cast from Mariejois by request from Saturn to the other Gorosei...
He looks menacing, I'll give him that. Some sort of flame powers are a given, and if it's a 1:1 spider bull oni (or whatever it was) he should also have poison? Safe to say, Bonney's attack will do jack shit to him. However, Luffy is within a few feet there, and Kizaru is surely coming down in a second so things will get cramped.
Imo Stella will surely die here but one of the other VPs (most likely Lilith) will survive and escape to Elbaf with the rest of the SHs.
Also, Saturn's comment about "not remembering the last time he was on the ground" can be twofold - either take it at face value as a comment from (clearly) an old man, or his age is much much greater than we are led on to believe and the last time he was down might've been hundreds of years ago.