The biggest problem your Arena team has is no Speed Aura Hero.

It is really going to mess you up on Arena Offense.

Based on the heroes you listed, I came up with a set up which might be ok in the beginning stages of Arena.

It might be able to get you out of Bronze.

It might not do so well in Silver, but it could help you till you get some better heroes.

• Athel
• Arcanist 
• Berserker
• Apothecary 

You want Arcanist to be the Leader with her 25% Def buff.

You want Apothecary to move 1st. (Make sure he has fastest speed compared to other 3 hero’s in your team)

You want Apothecary to be very fast with at least 4 speed gears + speed shoes.

You want Apothecary to fill turn Meter + add 30% speed buff

You want Arcanist to go 2nd.

You want Arcanist to be fast with at least 2-4 speed gear + speed shoes.

You want Arcanist to do 25% atk buff + Crit Rate buff

Athel + Berserker will be your Damage Dealers.

You want them to do a lot of damage. 

This is probably your best Arena Offense Chance for now.

For Arena Defense, I made a Guide explaining how I believe Arena Defense works.

I gave a nice beginner Arena Defense set up.

You can give it a shot!

https://plarium.com/forum/en/raid-shadow-legends/673_guides-and-tutorials/135577_arena-defense-guide-for-beginners/

For Clan Boss, you want to have following set up in the beginning:

1) Healer 

2) Turn Meter Filler

3 - 5) Heroes with Skills that apply Poison, HP Burn, or Enemy Max Attacks

1) Your Healer will either be Hexweaver or Mystic Hand.

2) Your Turn Meter Filler will be Apothecary 

3) Outlaw Monk will be your Poison

You will need 2 more hero’s.

You could get 2 more Outlaw Monks or you could try to equip a hero with a Toxic Set.

It depends on what you have to be honest.

You will eventually get more hero’s.

You will be able to make replacements down the road.