Base Class: Monk
The Way of the Crimson Thunder is a method utilized solely by the crimson monks within the Crimson Seal Monastery. This method of Crimson Thunder is best described as manifesting internal Ki as crimson colored lightning, that can be manipulated and used in a variety of ways. The Way of Crimson Thunder is a very unique and rare type of Ki usage and is often kept a secret by the Crimson Seal Monastery. However, those who have left the Crimson Seal Monastery have no problem revealing The Way of the Crimson Thunder to the world.
Thunder Fists
Starting when you choose this tradition at 3rd level, crimson lightning flows around your fists. When a target suffers an unarmed attack, it becomes sheathed in crimson lightning until the start of your next turn. If the target willingly moves before then, it immediately takes 1d8 thunder damage, and the effect ends.
Additionally, you gain the shocking grasp cantrip if you don’t already know it, and you can use your ki to duplicate the effects of certain spells. As an action, you can spend 2 ki points to cast thunderwave or shatter without providing material components.
Thunder Step
At 6th level, you gain the ability to thunder step. As a bonus action, you can teleport yourself to an unoccupied space you can see within range. Immediately after you disappear, a thunderous boom sounds, and each creature within 10 feet of the space you left must make a Constitution saving throw, taking 3d10 thunder damage on a failed save, or half as much damage on a successful one. The thunder can be heard from up to 300 feet away.
You can bring along objects as long as their weight doesn’t exceed what you can carry. You can also teleport one willing creature of your size or smaller who is carrying gear up to its carrying capacity. The creature must be within 5 feet of you when you cast this spell, and there must be an unoccupied space within 5 feet of your destination space for the creature to appear in; otherwise, the creature is left behind.
Lightning Reflex
At 11th level, you can exploit your lightning like speed. Whenever a creature within 5 feet of you is hit by an attack made by a creature other than you, you can use your reaction to make a melee attack against that creature.
Thunder Shield
At 17th level, you become wreathed in a crimson lightning aura. You discharge lightning in a 20-foot radius.
If a creature hits you with a melee attack while this lightning discharges, you can use your reaction to deal lightning damage to the creature. The lightning damage equals 5 + your Wisdom modifier.