Spell Stealer

You have mastered the art of disrupting an enemy's spellcasting and seizing control of their magic in the heat of battle.

Prerequisite: Strength 13 or higher, proficiency in Arcana

Benefit:

• Interrupting Shove: When a creature within 15 feet of you begins casting a spell that does not require material components, you can use your reaction to shove them. Make a Strength (Athletics) check contested by their Strength (Athletics) or Dexterity (Acrobatics) check. If you succeed, you shove them up to 5 feet away from you, and they must make a concentration saving throw (DC = 10 + the level of the spell they are casting). On a failed save, their spellcasting is interrupted.

• Spell Snatch: If the spellcaster fails their concentration save and you have the spell on your class’s spell list, you can attempt to finish casting the spell yourself as part of the same reaction. Make an Arcana check (DC = 12 + the spell's level). On a success, you cast the spell with the original caster’s spell slot, following the normal rules for spellcasting. If the spell is of a higher level than you can normally cast, you cast it at the highest level you are capable of. On a failure, the spell is lost and cannot be cast.

Special: You cannot use this feat on cantrips or spells with a casting time longer than 1 action.