Welcome to Healers’ World.

My personal short answer would be: to DPS & contribute in general until there’s a need to heal your party.

Long answer: everybody else that replied before me sums it up pretty well.

I may go on further, but I’d rather let you shape your own view & take on Healer Role by playing it (Shout out to you for deciding to give it a try).

And I really do hope you can find ways to enjoy this role, genuinely. Happy healing.