Grover's axes do so much damage at long range, that Grover can potentially have more damage-per-second than Kinessa at a certain point, making him a strong option for dealing with her at a distance.
If you're using Incitement IV, Ruckus is just a sitting duck for your Dodge Roll reset, especially if he's distracted by your teammates. He's easy to hit, you're not.
If Fernando doesn't have his shield up, try to hit him with your spit (don't detonate it). After it hits, you do more damage to him with your rockets, taking him down faster.