Mage Slayer (Redesign)

Through extensive practice to combat against spellcasters, you have developed ways to stop their spells in their tracks, sometimes before they can even cast them.

• When you damage a creature that is concentrating on a spell, that creature has disadvantage on the saving throw to maintain its concentration.
• While you are wielding a melee weapon, and are not incapacitated, if a creature within range of your melee weapon attempts to cast a spell, you can use a reaction to make a special melee weapon attack on that creature. If you successfully hit the target with this attack, you attempt to interrupt their spell as if using 'Counterspell'. When used with this effect, you can use your Strength or Dexterity (Chosen when you take this feat) for your spellcasting ability. You can use this feature a number of times equal to your proficiency bonus and regain all uses when you finish a long rest.