Pip can heal a lot but he has projectiles just like you so the chances of you winning the fight are increased

You can avoid his reload stun with obliterate/ult and cleanse/avoid his ult with your ult Cripple him to keep him from running

You are gonna want wrecker to have a easier time against her but sadly vora and wrecker do not mix well.

You should fight close with Grover since he has higher damage at range