Dueling Magic

is wizard sub class brings extra layers and power to spell caster versus spell caster fighting. 

Battle ready

2nd-level Dueling Magic feature

When you roll initiative you can use your reaction to cast a 1st level spell. This spell must not cause any damage or cause a creature to make a saving throw. This spell can not target other creatures. At 3rd level you can also cast a 2nd level using this ability.

You can use this ability twice, and you regain any expended uses when you finish a long rest.

 

Adaptive strategy

2nd-level Dueling Magic feature

When you forced to make a saving throw you can choose to add 1d4 to your save role potentially turning a fail into a success.You can use this feature multiple times for one saving throw expending uses for each additional d4. This feature must be used before you role your saving throw.  

You can use this feature an amount of times equal to your proficiency, modifier resetting each long rest.

Enhanced Counterspell

6th-level Dueling Magic feature

When you cast Counterspell it counts a one level higher then you cast it at.

In addition when you successfully Counterspell a spell, role a d20 adding your intelligence modifier on a 15 or higher you do not expend the spell slot used for the counter spell. 

Arcane Reflex

10th-level Dueling Magic feature

You gain advantage on Dexterity saving throws against spells and other magical effects.
When a creature targets you with an attack, you can expend one spell slot to impose disadvantage on the attack roll. You can use this feature twice per long rest.

 

Master Duelist

14th-level Dueling Magic feature

When you successfully Counterspell a spell select one of the following benefits:

Role a 1d6 which ever number you role the spell caster that was counter spelled loses one spell slot of that level. If they don’t have any spell slots of that level then take one spell slot from their highest available spell slot below that level.

Gain resistance to the damage type of that spell from 1 min. These effect can not be stacked.

Add 1d6 times the level of the countered spell to your next spell damage role. The extra damage is the same as the counters spells damage.

You can use these feature an amount of times equal to your proficiency bonus resetting each long rest.