Maeve can still double jump when she's affected by your ultimate.

Damage resistances do not apply to Torvald's shield, so Haven and Blast Shields aren't as good as a pick for him.

Pick Resilience instead of Blast Shields when trying to counter him, as blast Shields won't protect your shield.

Make sure to use your poison darts in a 1v1, otherwise Buck is guaranteed to outlast you.