Low ranks should really get an item limition.What I would suggest to fix this is:
Only allow one divine and one myhtical in lower ranks.
Oh also there should really be a item downgrading update to do my fix.
I don't know what to suggest else thought,maybe limiting the low ranks to only legendary items and 1 mythical?
Well,it's supposed to be a opposite of the sorrow.You probably have noticed by the only 1 needed element (sorrow needs 31 heat,mortal needs 31.).It could get a really small amount of drain,like 20.It doesn't need much thought,it still gets used.
I mean they are right because it is fun to use sorrow.Could be used as a backup weapon or a sorrow+burning shower combo.
Wouldn't recommend boiling in top ranks though,much people have 350 cooling.
Sorrow could be used for making energy free build types,at least it's usable until you want to reach top ranks.Admit it,the low heat cost (31 heat) and the high heat cost could destroy you at lower ranks.
I recommend waiting for hardened vest,since archimonde is never used in high ranks.
compare.
you can also use a interceptor instead of redeemer since interceptor is lightweight and can go from common to divine
watch token ads 30 times each day,nets 60 tokens.Do them on the pc since ads are 15 seconds on pc.Also if you ever run out of tokens to watch,go to your phone and go to raid.Defeat one mech then quit early.A ''Improve your mech watch for 2 tokens'' pops up.Watch it then switch your pc to watch the other 29 ads.Do this everday to get 1800 tokens monthly.Oh also don't forget to do campaign,daily quests and raid.
I strongly recommend you replace your bulldog with a lighting recoiler so you get good distance to use your weapons and put extra stuff for your mech.
Can you also show us what drone and modules you have?
by the way for your information,visit https://workshop-unlimited.vercel.app/ to test out mechs,there are items that you could probably make strategies of.