for those who think upgrading your accessories is easy well your right for the levl 40 and 60 accessories here's some advice Spirit forge accessories when you have all the Rock accessories they are better than the plain Flame accessories stats
once you done that you can lvl them up without much difficulty when they are spirit forge leveling them up won't change the amount of core crystals for rock it's still increases by 1 crystal for each level so level 1 costs 1 crystal and level 2: costs 2 crystals lvl 3 costs 3 crystals both for plain and spirit forged rock accessories. To spirit forge these accessories takes 50 bright stones each so that's 400 bright stones if you have 5 characters
Flame accessories costs 2 to level up than adds 2 crystals per every level 1=4| 2=6| 3=8 and so forth same with spirit forging. If you did manage to spirit Forge all your accessories from lvl 40 Since they are now better than the plain flame accessories you can either save up your bright stones up to 1000 per character because
here is the spirit forge cost table
lvl 40 =50 bright stones
lvl 70 = 125 bright stones
lvl 80 = 325 bright stones
now the power table
Plain rock I have forgotten the stats.
Spirit forge Rock base 425 +19pts when leveled up +1 crystal / level
spirit forged bracelets and anklets base 1500 +100pts when leveled up +1 crystal / lvl
Flame Accessories
plain base 255+13pts when lvl'd up costs 4 to level it up to 1 then +2 crystals / lvl
anklets and bracelets base is 900 +13pts when lvl'd up same cost
Spirit Flame base is 580 +25pts when lvl'd up same costs
Spirit forged anklets and bracelets base is 2100 +120pts when lvl'd up costs still the same amount of crystals
Thunder accessories
plain base is 380 +20pts when lvl'd up cost 5 crystals to get it to lvl 1 +3 crystals per lvl (I will give you a separate chart for this) bracelets and anklets base is 1400 +105pts each level it goes up.
Spirit Thunder accessories base is 760 +32pts per level costs still the same as the plain
spirit forged anklets and bracelets base is 2700 +165pts per level.
so my strategy was to switch out your spirit forged lvl 40 accessories with level 80 plain accessories but in order to do that you must first level up the lvl 80 accessory to match the level of the lvl 40 accessory. (recall me mentioning a separate chart I failed to realize until it was too late) better strategy spirit forge each accessory as you have them when you get to lvl 80 blood alliance each battle you lose gives you 5 bright stones so if you lose constantly that's 50 bright stones win all the time you get 10 bright stones per battle that's 100 bright stones per day.
when your lower levels like 40 you get 1 for losing or 2 for winning
lvl 60 2 for losing 4 for winning
So it's better to SF the level 40 ones and level them up instead of wasting a lot of stones on the level 60 set? Dang, i just hit 60 and just used up all of my stones on the level 60 set ;;