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.
Versus "Artful Dodger" Maeve, don't rush to use Crippling Throw. Wait until she will use "Nine lives" to heal herself. Only then Root her.
This way, she has her "escape" on cooldown and can't survive 2 second standing still.
Requares good aim.