Season 36

[Accyrover]

WTF.. My team failed again at championship league, what happen with them, anybody can suggest me the best formation and tactic for my team

Getting rid of most of the arrows would be a good start, I imagine most contradict your game mentality and are very tiring for the players.
You have a good selection of players (positions) so why stick to one formation.
A army that uses the same tactics for each battle will be beaten 4-1-2-1-2 narrow diamond has no flank cover, also a 3-1-2-2W-2 V formation will cause it no end of trouble, matching it's MF in the centre and overpowering it in attack.