Don't know what Bahamut's Insta kills are, what do they do?
aside from the sheer potency of Bahamut's Skyfall which is capable of Destroying Yatima's Nanomachine cells the size of an island with it is strong enough to resist and fight off against Archangels which are Stronger Than Europa which is 4-A
and his profile is also 4-A
The attack can either be Reginleiv, Sky-fall, or Supernova. for 5-A Captain that can summon
Supernova have durability-negating properties
Sky-fall is his nuke that often can EE (Concept, history, Info 2,) which I assume black fog resist
Reginleiv is a multi-elemental strike mouth beam
Hyperdimension is an ability to completely ignores durability as well using meteors
These are special attacks which are all rated 4-A
Bahamut is also capable of rebirth and destruction for the sky-realm but i don't know if it is done with the abilities i mentioned above.
Hax that guarantees victory gets nulled by a High 1-A Blessing that Joshua gave to basically everyone in his multiverse. It doesn't auto-win for Black Fog since it's AI, but it guarantees it has a chance at winning unless the Blessing gets nulled.
I'm not sure his Law hax or Fate hax is a guaranteed win since people can loss willpower and Mithra doesn't really guarantee win with Law Hax. it simply causes reality to warp to ensure the promise is in a state capable of being fulfilled so even if Freesia is not guaranteed to win as she was blocked by Black Knight Mithra still keeps reviving her to keep fighting even if she really have very low chance to win against Black Knight. but even if they get nulled I think Captain still has a fighting chance as he always fights into difficult scenarios
It resists everything up to his Intermediate Key. As for the degree, it depends on whether it's given time to analyze its opponent's abilities. Even 7 Gods with 1-A Hax couldn't outright destroy it because of how hard it was to kill. They were forced to put it in a multidimensional seal, and slowly chuck pieces of it into black holes.
5-A key does not have access to Trifecta Cerberus Yet which has something similar to a multidimensional seal or separation seal which separates an entity into multiple pieces before being locked in pandemonium so it is not an option. Though I read Black Fog's profile and he has dimensional travel but idk if it includes locked dimension
if it doesn't then Colossus's Dimensional Cleave would also be able to like BFR it the same way it BFR Astrals and they were unable to return. There is also Magus
He would be able to analyze the abilities of other primal beasts but whenever Captain summons Bahamut they always go with his nuke attacks as soon as possible
It's not higher dimensional, the only things that are smurfed are its resistances, and defensive ability. Everything else is just extremely potent.
That's weird don't the Gods have like super high potency? are they like mostly haxlords?
If so that makes it complicated
Also, another thing I don't know if Joshua's Resistance negation is on the same level as the one in Granblue since the scans specifically are about communicating with locked souls. Because in Granblue Resistance negation have varying levels and applications.
1 is negating resistance that is achieved by power modification that causes the hax to be applied into a substitute rather than the intended target
2 is negating resistance to make one's resistance incredibly lower making it so certain abilities can take root better but don't work on total Immunity
3 is outright negation by completely ignoring any mechanics regardless of debuffs or buffs like Blind, hit to accuracy, Mirror Image, debuff resistance, and debuff immunity