I like the idea of playing with AC. Let’s see if I can keep that going in 5e
Crack the Shell
You can spend 1 ki point after you make an strike that hits to attempt to sunder the foes armor. The attacked creature must make a Constitution saving throw or have its AC reduced by 2. A creature may only be under one of this effect at a time. The creature can have its armor repaired normally, through the use of a mending spell, or in the case of natural armor have a healing spell cast upon it.
How about a way to take down armor as a monk in Pathfinder?
Prerequisites: Improved Unarmed Strike, Ki pool class feature, Wis 13
Benefit: You learn how to channel your ki into the armor of another to devastating effect. When you make an unarmed strike, you may declare you are using this feat and may spend up to 1 ki point per three character levels. If you successfully strike the target and the target takes damage from the blow and the creature must attempt a Fortitude saving throw (DC 10 + 1/2 the character’s level + the character’s Wis modifier). On a failure the armor takes damage equal 5 times the ki points spent. If the saving throw is successful, the target’s armor is unaffected. Creatures with natural armor have the bonus from their natural armor reduced by the number of ki points, up to to the natural armor bonus. After a week of natural rest or healing magic the natural armor bonus returns. If the target as multiple armor bonuses from natural and artificial armor, you may choose which one to attack.
As a kid, I always loved Kaiju and the superheroes who changed size to fight them. Let’s make a monk who does that.
Be careful when you fight monsters, lest you become one. As a kaiju slayer, you have been trained to harness power in yourself and use it to attack the monsters who threaten your people.
Path of the Kaiju
Starting when you choose this tradition at 3rd level, you can manipulate yourself using ki. You can spend a ki point to increase your size, spending one ki point per size increased as a bonus action. All objects you hold, wear, and wield increase in size as well. Your unarmed damage increases as well, with each size increase modifying your damage by one step along this track. 1d4->1d6->1d8->1d10->2d6->2d8->2d10->2d12. This size may be maintained for up to one hour, but you may end it at any time as a reaction.
Squish the Ant
At 6th level, you learn how to fight those smaller than yourself. For each size category that you are larger than an enemy gain a +1 bonus to damage against that target.
Skin of the Beast
Beginning at 11th level, you learn to harness the abilities of the monsters you fight. For each size category you increase your size, you gain a +1 bonus to your AC.
At 17th level, you gain the ability to fully harness your kaiju power. For each size category you increase yourself, increase your proficiency bonus for all weapon and unarmed attacks by +1.
How about one more ki feature for the monk?
You can spend 1 ki point to change your unarmed attack damage type to piercing or slashing for one turn.
Let’s start May with a quick ki feature for DnD 5e
As a free action, you can spend 1 ki point change the damage type of your unarmed attacks to acid, cold, lightning, fire, necrotic, poison, or thunder for the turn. Your attack still counts as bludgeoning in addition in addition to its added damage type.
How about a monastic tradition based on TMNT?
Way of the Ninja
Ninjas are masters of disguise, subterfuge, and stealth. The operate in broad daylight or under the cover of darkness with the goals of observation, infiltration, and assassination.
Mastery of skills
Starting when you choose this tradition at 3rd level, you gain the expertise ability as a rogue. You apply the expertise ability to your Dexterity(stealth), Dexterity(acrobatics), and Charisma(deception) checks.
At 6th level, you gain the rogue’s sneak attack ability as a rogue two levels lower than yourself. You may only use this with weapons a monk is proficient with.
One with the Shadows/One with the Crowd
Beginning at 11th level, you can move from shadow the shadow undetected or unseen in a crowd, but must choose one. If you are One with the Shadows, if you start your turn hidden and in an area of lowed viability, you are invisible until the start of your next turn allowing you to freely move from dark location to dark location undetected. You are only invisible to creatures you started your turn hidden from. Also, modes of seeing such as blindsight and truesight will still detect you. If you are One with the Crowd, you gain advantage on all Charisma(deception) checks and advantage on all Dexterity(stealth) checks made while among a group of non-combatants to become hidden.
The Killing Darkness
At 17th level, you gain the ability to make more then one sneak attack per round. For each sneak attack you perform in a round, you may pay 4 ki points to perform an additional sneak attack that round.
I watched the TMNT movie Friday night. It was bad but did make me think about a few new monk ideas…
How about this ki feature
You can spend 1 ki point to double your proficiency bonus to Charisma(performance), Dexterity(acrobatics), Dexterity(stealth), Strength(athletics), Wisdom(perception), and Wisdom(survival) checks for one check or one turn, whichever is longer .
Been thinking of the monk, and thought of a new ki feature
Wisdom of the Ages
You can spend 1 ki point to take the Assist action as a bonus action on your turn.
How about expanding maneuvers to other classes? Let’s make a fighter monk!
Way of the Fist
This path is taken by those who emphasize the physical over the mental for martial combat while still honing your body over any weapon. You’ve learned how to master your body and master the bodies of your foes by emphasizing physical technique over utilizing ki.
Starting when you choose this tradition at 3rd level, you gain three maneuvers as if you were a fighter. You have a number of superiority dice equal to your Wisdom modifier, and your superiority dice are equal to your unarmed attack dice.
Gain the Second Wind class feature of a 1st level fighter using your monk level as if it were your fighter level. Also, gain one additional maneuver from the fighters list.
At 11th level, you an an ability score improvement. Gain one additional maneuver from the fighters list.
Sifu of the Temple
At 17th level, when you use a maneuver as part of an attack, you can spend superiority dice and perform two different maneuvers as long as both maneuvers target the same creature and cast the same number of superiority dice.
How about another feat for some monk splash?
You have learned the way to punch through steel. Gain the following:
- Increase your Wisdom by 1, to a maximum of 20.
- Choose one skill a monk gains at 1st level. You are now proficient in that skill.
- You unarmed attacks are equal to a monk of your level. At 6th level your unarmed attacks count as magic for overcoming damage resistance.