If Furia happens to select the Solar Blessing talent, try to save your Dead Zone to use on the location of the beam. The immense healing provided by that talent will be easily negated.
Sha Lin's ultimate can make him hard to track, but throwing down a Sensor Drone near where he was last seen will reveal him for your team and partially negate his ult.
Vivian has some of the highest sustained DPS in the game, especially with her ult active. If an ally gets hit by Yag's ult, you'll easily be able to shred through her ultimate health to save them.