Skye effectively counters Kinessa, as first, Kinessa doesn't have any reliable movement strategy, and she cannot self heal. Additionally, Skye can evade Kinessa's shots, unless by some bad luck, gets hit by Kinessa, which means Skye can get close.
Never get close to Ruckus. 1. Your damage will be to pitiful to seriously hurt him, and 2. Ruckus's damage will completely shred through Grover like paper, and Blossom will not be effective whatsoever. Moral: stay far from Ruckus.