Monsters exist all across the multiverse, as do the everyday heroes that defeat them to protect the weak. Heroes for fun, or "Soul-Heroes", don't do it for the glory or the fame, they fight to protect the weak for the challenge. Finding a worthy foe and becoming more powerful is a great drive to a Soul-Hero: the true power of a hero is that they can change themselves on their own.

Basic Techniques

Starting at 3rd level, as an Action you can perform one of the following attacks:

• One Punch - Make one unarmed melee attack against a creature within range, rolling twice the normal damage dice for the attack. On a hit, you can use a Bonus action to spend Ki points up to a number equal to half your level. The target takes 1d8 + Dex mod additional damage per Ki point spent.
• Normal Consecutive Punches - You can spend two or more Ki points to perform a flurry of attacks. Each creature in a 10-foot cone must make a Dexterity saving throw. A creature takes 1d6 bludgeoning damage for every two Ki points spent on a failed save, or half as much damage on a successful one.

100 Push-ups, 100 Sit-ups, 100 Squats, and 10KM Running, Every Day

At 6th level, your daily training regimen has elevated your body to superhuman levels. You gain the following benefits:

• Enhanced Lung Capacity - You can hold your breath four times longer than normal.
• Body Temperature Control - You ignore any ill effects of hot or cold environments.
• Immeasurable Strength - Your carrying capacity is doubled. This also doubles your push, drag, and lift weights.

Serious Consecutive Side Hops

At 11th level, you can use your immeasurable speed to hop from side to side rapidly, allowing you to create a multitude of afterimages. As an Action, you can spend 3 Ki points to create three illusory duplicates, as if casting the Mirror Image spell.

Serious Punch

At 17th level, when using your One Punch technique you roll quadruple the normal damage dice for the attack instead of twice, and the damage per spent Ki point is increased to 1d10 + Dex mod. Additionally, there is no longer a cap on the amount of Ki you can spend for the ability.