Pack Tactics. The creature has advantage on attack rolls against another creature if at least one of the attackingcreature's allies is within 5 feet of the target creature and the ally isn't incapacitated.

As a bonus action, you can magically turn invisible until the start of your next turn or until you attack, make a damage roll, or force someone to make a saving throw. Once you use this trait, you can’t use it again until you finish a short or long rest.

You can attempt to hide even when you are only lightly obscured by foliage, heavy rain, falling snow, mist, and other natural phenomena.