MustakrakiisH
I've had a look at your units and came up with a few teams that may be viable for you. The Arena teams should work well assuming they are 6* with High BB/SBB, I know this may not be possible for you due to cost limitations but consider working towards some of these if you are struggling.
Arena Team:
Dia (Lead, must be 6*)
Reeze
Ophelia
Deemo
Lira (If you're only using her for Arena leave her BB at 9 as her SBB is single target which is useless for arena)
Arena Team Alternative:
Miku (Lead)
Fiora (Have Fiora at the top so if she uses her BB she adds elements in same turn)
Reeze
Deemo
Lira
Main Squad/Sustain Squad:
Zellha (Lead)
Luther (Guardian if you want a bit more sustain as he already has high att, else Lord is fine)
Altri
Leorone/Michele if defence isn't an issue, especially against earth units for her fire element buff
Lilith for unlimited SBB spam
**This team isn't that brilliant, if you can manage to get a damage mitigation unit such as Darvanshel it will be much better
Crit Squad:
Mariudeth (Lead can use either Breaker or Anima depends on preference, personally I prefer more HP)
Michele
Luther
Douglas
Zephyr/Deemo/Zellha
BB spam/Spark squad:
Deemo (Lead)
Luther (Possible alternative lead)
Douglas
Zellha
Miku/Michele for att buff
If you need help with spheres or have any questions about these teams feel free to ask anything.
