First off, nice Vid Zoose.
I agree with having a slight shave to the celestial stats to bring them down a bit but the main problem as you said is not in the stats themselves.
I know I am going to get hate for this but I myself have been a strong advocate of rebalancing sigils for a long time. The powercreep from the sigilchange was so huge that sigils in my opinion are in such an unhealthy state.
And I completely agree that sigils should have different values in spvp and pve.
First of all like you said Zoose, mightstacking from battle sigil is way over the top. The ability to have 105 extra power and condition damage right as you enter the fight, gaining 210 power+condi 10 seconds into the fight and 315 power+condi 20 seconds into the fight is a bit crazy. And you gain all that without actively trying to do anything. And since we all know how well burning scales with condition damage what you get is. IP on a cele engi goes from 2189 to 2714, full drakes breath goes from 5553 to 6498. And this extra bonus goes to all your physical attacks and bleeds poison and so on.
Now if you had the change from 3 stacks of might to 2. The damage gain from battle would be way less of a factor in the fight. And you would still becomes strong long into a fight if you spec into +might duration and trait into +boon duration.
Keep in mind that blasting your own firefields would still net you 3 stacks with however long of a duration based on your boon and might duration, promoting active play.
Now since our goal is not to nerf battle and cele to the ground but rather have a healthy meta with a mix of everything, you would have to take a look at all the other sigils aswell.
Ideally having sigils of the same type not stack again would be amazing, but I am unsure arenanet would revert back to that.
Now if you don’t do that, atleast just flat out rebalance the effects.
On crit sigils. air fire blood earth strength, just a simple 20-25% reduction in base damage. And again if you have a long drawn out fight where your team actively applies might to your allies and vulnerability to the enemies the effect of the sigils becomes impactful in the fight.
On hit sigils, fine as they are, not really a thing spend work hours on at this moment.
On swap sigils. Battle already talked about, Leeching hydro geo renewal a simple 20-25% reduction in damage/healing/bleed duration. Energy down to maybe 33%. Int and doom are honestly not in a bad state at the moment… in my opinion.
On kill sigils. Keep em as is… because 9 stacks of might from battle is already better than having a fully stacked power/condi stacking sigil on you anyhow.
Passive sigils. Keep em as is for now. Not really where the problem in the meta lies at the moment.
I know that simply shaving the cele amulet and toning down the sigils wont dethrone d/d ele from being the king of 1v1s since the problems with ele lie a bit deeper then that as the other posts in this thread already said.
And the real question is what happens to the meta in a world where celestial is slightly shaved and sigil effects have been reduced.
-Overall damage in the game has been reduced, maybe allowing bunker guardians to find their spot in some teamcomps.
-celestials will still be effective in teamfights as bruisers.
-celestials will have slightly less survivability and offensive capabilities, allowing some builds to contest them on nodes and making them more vulnerable to being overwhelmed and forced offpoint in outnumbered situations. Promoting faster and smarter rotations.
So the goal is not to kick out celestial amulet or battle sigil from the meta but to bring them down a notch. So you could promote having a mix of bunkers, celestial bruisers and berserkers in teams, diversifying viable team compositions.
What would happen in reality is something we would have to find out.
We could also talk about if +45% might +45% bleed and +45% burn runes are in a good spot or not or if removing the -20% weapon swap recharge from the rune of the warrior and rebalancing the icd of sigils from 9s to 10s could be an option but those are things for another time.
Awaiting the hate, peace.