What's your approach for dealing with this team?

What's your general approach for dealing with teams like this and phoenix in squad arena? They heal on every hit and I'm lucky if I get 1 or two hits in before my team gets wiped out. I've tried various different teams but I haven't found anything to give me the slightest success yet.

What's your general approach for dealing with teams like this and phoenix in squad arena? They heal on every hit and I'm lucky if I get 1 or two hits in before my team gets wiped out. I've tried various different teams but I haven't found anything to give me the slightest success yet.