Hello Rola
First of all, according to your post, I am a good spender.
Currently my team lv is 51 and this is my core (based on your guide of cause).
lv. 51
Shallows keeper 3 stars
War chief 2
Wind master 3.5
Old curse 3
Commando 3
Leaves shadow 2
Chaplain 2
Others are
lv 40-50
Brute 3
Bear warrior 3
Savage one 2.5
Admiral 2
lv 1
Ice mage 3
Cleric 2.5
Machinist 1
My questions
1.You said that at high lv. a good spender could keep about 8-9 heroes leveled. So which one I should pick ?(it's OK if you pick the one I don't have now)
2.In short term, should I level the other heroes for crusade? or leave them there? Now I have to use all the 6 tanks for 15/15 on crusade
(sorry, I have to use bear for tank right now

)
3.Arena coins go to 5 stars old curse first, or 3 stars with panda? same as crusade coin go to 5 stars WM and Commando or get Pilot first ?
4.In my scenario, is it necessary to reset the elite stage for War chief and Chaplain 3 stars now? (I have gems if it worth)
5.I saw your team from the thread About me & my team. You have Silencer and Pilot at 70 but Leaves shadow at 53.
you also have Brute, DK >> bear warrior, panda. why ?
Thank you Rola, and sorry for my english.