Best Nita guide

Nita's bear can effectively prevent the enemy he is chasing from healing up. The enemy will either have to attack, stopping or preventing natural healing, or get damaged, out of which the enemy will most likely choose the former. This can be used to pressure a weakened Gem carrier or other crucial opponent into getting easily defeated by Nita and her team.
Bruce can also detect Brawlers hidden in bushes and pursue them. This can help Nita and her teammates locate hidden enemy Brawlers, effectively making it a scouting tool.
Nita's Super can be thrown over walls, so it can come in handy for dealing with enemies that are hiding behind one. You can use the Bear Paws Gadget in these situations, too, to get more value out of Bruce and potentially defeat the enemies hiding behind a wall.