A Grohk with Maelstrom sacrifices healing for large amounts os AoE damage and self-healing, allowing him to solo duos and even trios. Grab Cauterize to shut him down instantly.
Inara's wall is tall enough to block Pip's Weightless, but being near a wall with a floor(Ledge, side of stairs) boosts jump height so that he can get over it. If there's a ceiling, however...
When a Ying uses Dimensional Link, a way to track her down is destroying her clones. She might teleport into a clone you're destroying and take damage, and if not, it will still be easier to find her as you narrow her escape options down