Magic is for nerds!

You have practiced techniques in melee combat against spellcasters, gaining the following benefits.

• When a creature within 5 feet of you casts a spell, you can use your reaction to make a melee weapon attack against that creature.
• When you damage a creature that is concentrating on a spell, that creature has disadvantage on the saving throw it makes to maintain its concentration.
• You have advantage on saving throws against spells cast by creatures within 5 feet of you.
• all magic damage is halfed
• anytime you land a critical hit against a magic user, they get disadvantage on their next spell cast
• BLACK FLASH: when you land a critical strike, your critical range increases by one, THIS IS STACKABLE!