Splintered Soul

After the death of your loved one, you fell into a deep depression. This lead you to take more risks, as you had a desire of life that flickered out.

This depression led to the goddess, Auril. She decides to take kindness on your soul. She is the deity of ice and snow, and she chose you as a vestige of her power. Her power is drenched in distress and fear, but you have had enough of your overcoming sadness and anger.

You decide to break your pact, because you want to get revenge on your own terms.

Taking your granted power for yourself, you have angered Auril greatly, but she has not stripped you of it. It seems that you might be a pawn for something later.

Broken Pact

1st-level Splintered Soul Feature

With your pact broken and with your vengeance feeding you, you set yourself out to find your spouse's killer. 

The magic obtained from Auril is proficient in ice and water based arcana.

This allows for the manipulation of water sources in the map.

You also gain bonus damage on water and ice attacks (+1d4).

This effect will have three uses (plus your CHA modifier) before recharging after a long rest. 

Frozen Bodied

6th-level Splintered Soul Feature

You thought vengeance would cure your broken heart, instead more death has only made it colder. 

Your abilities become stronger as you begin to feel more pain.

As you walk on water, the water freezes below your feet and melts when you are no longer in contact.

You can no longer swim because you freeze any water near you, and now you create small flurries on your skin and clothes due to the moisture in the air freezing.  

This perpetual snow causes you to have disadvantage on stealth rolls when in an enclosed area. 

Verglas Wall

14th-level Splintered Soul Feature

You have a surge of power which has granted to you from Auril, as she is always watching you.

You gain the Control Water spell.

Also as an instinct, the power within you can block a magical ranged attack as a thin ice wall.

This wall can block damage up to your sorcerer level. This has two charges per long rest.

You can also refresh up to two charges for three sorcery points each, but this requires concentration for a turn of combat. 

Icy Heart

18th-level Splintered Soul Feature

You have forgone all human emotion and become distant from others.

This was Auril's goal and so she comes back to greet you. She offers you a new deal, this time she wants you to act as her adjutant and enact her will. This time you accept.

She imbues you with stronger magic and a part of her own self. 

As her icy essence flows in your veins, your body develops immunity to the the effects of cold weather. 

Also you now have immunity to cold based attacks and you have a gain resistance to fire and fire attacks.