As it currently stands during pve the boosts and weaknesses are legacy, where storm should be boosting on fire and be weak to ice according to roshambo, they are strong against Myths and weak to other Storms. Since Roshambo is being introduced as early as Celestia in the tutorial, then the boosts and weaknesses should reflect that, I feel that it'd make the change over from standard content to advanced content at least a little bit less. This would also strengthen the idea of roshambo as well.
#Since Roshambo is being pushed for PvE, then the legacy boosts and weaknesses should be changed
lusty jewel
inner patio
It’s so funny because something like this was explicitly removed from Celestia in the recent update (though some of the boosts didn’t match with the modern rosh wheel) but still exists in the rest of Arc 2. I know Standard rules generally use the Standard boosts, but it added a little extra flair to arc 2
wraith oriole
This would modify prisms as well so while i don't think it's a bad idea, it's not easily doable, or fast.
They would need to go through every minion and boss in the game post arc 1, add the right modifier (lets say "-20%" so the creature boosts 20% to said school), and remove possible wrong ones (such as myth creatures boosting to death damage).
It's a lot of manual work.
They are already doing something similar by slowly adding archmastery to every mob before novus, since they can't use lore spells without archmastery but they should be using them as they were originally designed to do so.
But they're doing that upside down, so it should be a couple of updates until it reaches Celestia, which would be the last world they would do it.
robust forge
for Arc 2, I'd prefer more of a transitional thing. Ice enemies would be weak to Myth and Fire, Fire is weak to Storm, Storm would be weak to Myth and Ice, Life is Death and Storm, Death is Ice, Myth is Storm and Fire, then Balance would still be all spirit schools.