Bludgeoning Master (5e Feat)
From D&D Wiki
You have mastered the use of bludgeoning weapons, giving you the following benefits:
- Your Strength score increases by 1.
- You gain proficiency in two of the following weapons of your choice: clubs, greatclubs, light hammers, maces, quarterstaffs, flails, mauls, and warhammers.
- When you score a critical hit with a club, greatclub, light hammer, mace, quarterstaff, flail, maul, or warhammer, you deal an extra 1d6 bludgeoning damage, and the target must succeed on a Constitution saving throw (DC 8 + your proficiency bonus + your Strength modifier) or be stunned until the start of your next turn.