I guess you could say that team fights without Mercy

It's hard to be a good support player if your teammates don't give two f**ks to try and help you. If Pharah wants to fly away to an unreachable area and away from the healer, so be it. If Reinhardt makes himself a gigantic target and doesn't want to use his shield, so be it.

Mercy will heal all the physical wounds she's able to. But, as the great philosopher Ron White once said: