Precognition Sorcerer

From birth, you have been able to forsee the future. You may use it to aid yourself or others: the future is yours.

Glimpse of the Future

You sometimes see an attack coming before it happens. When you're not wearing any armour, you can add your Charisma modifier to your AC.

Aid in Future

On a long rest, roll 3 die and record it. During the day, if you can see the person that rolled, you can choose to exchange one natural die roll for one of the die you've rolled. Available once for each roll you recorded. Any rolls you have not used before another long rest is lost.

The number of dice increases to 4 at level 9, and 5 at level 15.

Preview the Storm

Add Charisma to your Initiative rolls, and you cannot be surprised when conscious.

Alternatively, when rolling initiative, you can spend 3 sorcery points to grant yourself and all allies a free round.

The Best Defense

When you are hit with an attack you can see, you can spend your reaction to half the damage on that attack.
Alternativly, when you succeed a saving throw that grants half damage on a success, you can use a reaction to take no damage. 

You can also use a reaction and 2 sorcery points to negate any effects that a spell with a saving throw would have on you, whether you succeed or fail the saving throw.

Weaving Fate

You can now alter fate and circumstance for desired results. When an attack or spell is made, you can use a reaction to negate any effects and damage entirely, but it is still treated as if it went off for sakes of spell slots, recharges, etc.

The amount of times you can use this is equal to your Charisma modifier, and resets every long rest.