Lifesource Breathing. This creature can breathe when either contracted, where's there's a lot of life, or high-end life.
Eidolon of Peace. If you don't attack any enemies, they cannot attack you either. This only applies if contracted.
Anti-Focus Aura. No matter how hard you try, you can only either see OR notice the shydra.

Shydra Healing. Heals for 3d6+10 any ally, adding 3 times targe'ts charisma bonus to such. Costs an action, and range is sight.

Shydra Charming. Compare the shydra's charisma to it's target. Range is 300 feet, and costs an action. On a successful charisma roll, the enemy is charmed for the remainder of the duel, choosing the shydra for the charming effects.

Shydra Bubbles. Does ice damage for 3d6+10 on any enemy, doing a constitution saving roll to such. Costs an action, and range is 300 feet. Target is treated as if underwater for 3 turns after it's done, and this attack cannot work again until the bubble runs out.

Eidolon of Peace. Enemies and allies can become inspired to have better charisma around the Shydra as desired. This grants a 2d4+5 bonus to wisdom and charisma rolls, but that requires contracting.

Eidolon Contract. Every eidolon has conditions, or else failing that, the price tag, even for angels/demons, is their soul. The shydra options are:

1. Prevent at least 3 empires from going to war.
2. Awaken at three other eidolons, you don't need to contract.
3. Save the lives of at least 13 people, without intentionally setting such up.