His escape ability can be annoying since it shrinks his hitbox making it harder for you to hit him with your hook, try to hook him before or after it. Lex can do allot of damage so careful not to be too low on hp.
When you see Zhin is an Opponent, Look at his Legendary. If he isn't using Retaliation, Feel free to shoot his counter from a distance as he will only have one block. Never Shoot a Retaliation Zhin though as most Heal from it... A LOT!
Careful near edges as cassie can one shot you if she sends you out of the map. knowing this she may chase you there in order to get an easy kill. Try knocking her off instead or leading her to a team member who can if you need to retreat.
If an enemy Skye uses her Smokescreen to escape nearby, you can use your abilities to trap the Skye by dropping your Warder's Field and Impasse in the nearest available exits. She can then be quickly bursted down in a 1v1 situation.