Why in raid can a 3 star kill a fully ascended 4* but my heros can barely create damage. Happens every time I battle weaker teams. A team 500 points weaker than me can wipe out my whole team in one attack
The way the defensive team charges up mana (both every move and when you damage it) means you need a different strategy than map stages. Try bringing a 2nd hero that is strong vs the tank (middle position). Once that hero is dead, tiles that shoot up the middle give extra mana vs tiles that hit the heroes.