If you find IO while Luna is still active, instead of targeting Luna to get her down go for IO. When she dies, her fox dies. This is similar to Barik with his deployable and Inara with warder's field. They all are removed from the field after death

Maeve can double jump, but newer players don't realize you can jump a third time after pounce. Experienced players use this to stay in the air for long periods of time (Rouges Gambit: jump, pounce/jump, 9 Lives, pounce/jump) use stun/cripple for this

Watch out for Mal'Damba players, their stuns can be the end for you. Make sure to get resilience if you plan on taking them on alone to make the stunning as weak as possible. Until you get at least resilience 2, stay away from them.

Try to stay out of his line of sight, and find where he will teleport back to so you can surprise him. Be prepared to hide quickly, because you can die very quickly to him. Try to pair up with others to minimize dmg taken and to kill him quickly.