The important things when you face andro when he about to engage you are to Keep Calm, Dont Panic, Give damage and place teleport for escape. Remember 2x of your normal shoot, enough to make andro retreat. Dont Feed andro reversal, wait for it.
Try not to prioritize to kill him first. Let him as your last dessert.
But you still can win against terminus in certain map if you have advantages of controlling high place with abbys spike. Use your tp, term cant hit you from far.