Way of the Gentle Fist

Based off the Hyuga clan of ninjas from Naruto.

Mana Shutdown

Starting when you choose this tradition at 3rd level, when you make a critical hit against a creature, the target must make a Constitution saving throw. On a failed save, they can not cast any spells until the start of your next turn

Eight Trigrams

At 6th level, you have mastered the Eight Trigrams Palm technique. You gain the following abilities:

Eight Trigrams 
16 Palms: As an action, you may expend 1 ki point to make an unarmed strike against a creature within range. On a hit, the creature must make a Constitution saving throw. On a failed save, it can not cast any spells until the start of your next turn. Spells like Lesser Restoration can remove this effect.

32 Palms: As an action, you may expend 2 ki points to make 2 unarmed strikes on up to 2 creatures within range. On a hit, the creature must make a Constitution saving throw. On a failed save, it can not cast any spells until the start of your next turn. Spells like Lesser Restoration can remove this effect.

64 Palms: As an action, you may expend 3 ki points to make 3 unarmed strikes against on up to 3 creatures within 10ft. On a hit, the creature must make a Constitution saving throw. On a failed save, it can not cast any spells until the start of your next turn. Spells like Lesser Restoration can remove this effect.

128 Palms: As an action, you may expend 4 ki points to make 4 unarmed strikes on up to 4 creatures within range. On a hit, the creature must make a Constitution saving throw. On a failed save, it can not cast any spells until the start of your next turn. Spells like Lesser Restoration can remove this effect.

Palm Rotation

At 11th level, you have mastered the Palm Rotation technique. You gain the following ability:

You may use your reaction to expend 5 ki points, you gain a bonus +8 AC and you automatically succeed on all Dexterity and Constitution Saving Throws until the start of your next turn. If there are any hostile creatures within 10 feet of you, each creature must make a Strength saving throw. A creature takes 3d10 force damage, is pushed back 15ft away from you and knocked prone on a failed save, or half as much damage, is pushed back 5ft and is not knocked prone on a successful one.

Air Palm

At 17th level, you have mastered the Eight Trigrams Palm technique to such a degree you can now shoot concussive blasts from your palms. You gain the following ability:

As an action to expend 5 ki points to make a ranged spell attack against a creature you can see within 120ft. On a hit, the creature takes 6d10 force damage and must make a Strength saving throw. On failure, they are knocked back 10 feet and knocked prone. If successful, the target is knocked back 10 feet and not knocked prone.