I think mercy needs a buff that would work like this:
Players who are half and below will be healed at 55hp
Players who are over half can be healed the normal 50hps
Valkyrie will need a impact of course so to implement that impact would be:
- Healing 60hps
- Damage boost 5%+^
- Resurrect cool down reduced to 15 seconds
60hps will only apply to beams that are extremely close to the main person being healed/damage boosted. The further you get away from that person the numbers decrease. Lowest would be 50 before disconnected.
As for your suggestions I think it’s overall good idea, I’m not really sure about the tanks necessarily.