Spellbreaker Barbarian Features

Spellcasting

When you reach 3rd level, an unknown source of magic burst from within you, fueled by your rage. See Spells Rules for the general rules of spellcasting and the Spells Listing for the sorcerer spell list.

Cantrips

You learn two cantrips of your choice from the sorcerer spell list. You learn an additional sorcerer cantrip of your choice at 10th level.

Spell Slots

The Spellbreaker Barbarian's Spellcasting table shows how many spell slots you have to cast your sorcerer spells of 1st level and higher. To cast one of these spells, you must expend a slot of the spell’s level or higher. You regain all expended spell slots when you finish a long rest.

For example, if you know the 1st-level spell chromatic orb and have a 1st-level and a 2nd-level spell slot available, you can cast [spell]chromatic orb[/spell] using either slot.

Spells Known of 1st-Level and Higher

You know three 1st-level sorcerer spells of your choice.

The Spells Known column of the SpellBreaker Barbarian's Spellcasting table shows when you learn more sorcerer spells of 1st level or higher and must be of a level for which you have spell slots. For instance, when you reach 7th level in this class, you can learn one new spell of 1st or 2nd level.

Whenever you gain a level in this class, you can replace one of the sorcerer spells you know with another spell of your choice from the sorcerer spell list. The new spell must be of a level for which you have spell slots.

Spellcasting Ability

Constitution is your spellcasting ability for your sorcerer spells, since you learn your spells through your rage manifesting itself. You use your Constitution whenever a spell refers to your spellcasting ability. In addition, you use your Constitution modifier when setting the saving throw DC for a wizard spell you cast and when making an attack roll with one.

Spell save DC = 8 + your proficiency bonus + your Constitution modifier

Spell attack modifier = your proficiency bonus + your Constitution modifier

Spellbreaker Barbarian's Spellcasting

 

Spellbreaker's Magic

You can cast spells regularly only whilst raging.
In-order to cast a leveled spell, whilst you aren't raging you must succeed a CON check (DC = 10 + Spell's Lv)
on a failed check the spell fails and the spells slot is waisted.
Cantrips can be cast regularly at all times.

Spellbreaker's Resilience

At Lv. 6 this unknown source of magic grows within you, giving you a benefit of your choice, fitting with an Arcane theme; 

Fire; you gain resistance to cold damage, and gain immunities to extreme cold's effects.

Cold; you gain resistance to fire damage, and gain immunities to extreme heats effect. 

Lightning; you gain resistance to lightning damage, and gain a additional 5 ft. of movement

Radiant; you gain resistance to Necrotic and Radiant damage.

Cold

You gain resistance to cold damage and the effect to extreme heat. 

Fire

You gain resistance to fire damage, you are immune to the effects of extreme cold.

Lightning

You gain resistance to Lightning damage, and gain an addition to 5 ft. to your walking speed.

Radiant

You gain resistance to Radiant and Necrotic Damage.
You gain access to the light cantrip.

Wrathful Casting

As a free action you can expend one of your rages in order to increase the level of the spell you are casting. 
You may only increase by one level at a time.

In addition, when casting a damaging spell whilst raging, you gain the bonus to the damage equal to the bonus rage gives to melee attacks. (+2)

Elemental Rage

When casting a leveled spell, if the damage type matches your choice of Spellbreaker's Resilience, you can add your Barbarian Lv to the damage total.