Working on an animal stance monk subclass and I'm having trouble thinking of the 6th level feature here's what I have so far.

Way of the Wilds

When you choose this tradition at 3rd level, you learn stances that harness the power of animals. A stance requires you to use your bonus action and spend Ki points each time you use it. Each stance lasts for 1 minute or until you use another one, are incapacitated, or end the stance as a bonus action.

Bear's Hide, 2 Ki points: This stance embodies the tough hide and indomitable spirit of the bear. When you enter this stance, you gain a number of temporary hit points equal to your monk level + your Wisdom modifier and as long as you are in this stance, you have advantage on Strength checks and saving throws. Any remaining temporary hit points disappear when the stance ends. (Needs better wording)

Viper's Fang, 2 Ki points: This stance mimics the viper's ability to strike with precision from a safe distance, coiling and uncoiling the body and retreating after attacking. While you are in this stance, your unarmed attacks have a 10 foot reach and score a critical hit on a roll of 19 or 20.

Wolf's Hunt, 2 Ki points: The wolf leads the hunt, and this stance allows you to lead your allies in battle. When you hit a creature with a melee attack on your turn, the next attack roll against the target by an attacker other than you has advantage if the attack is made before the start of your next turn.

I'll add more stances at level 11, but I wanted to get ideas for level 6 first.