Evolutionist

Your form is intensely magical—infused within you is the power of pure arcana. You weave this power to shape magical, iridescent enhancements— translucent limbs, lustrous, glowing eyes, or even tattoo-like augmentations that wrap around your body. You could have received this power at birth, or it might have been imbued within you at some point in your life. Perhaps a higher being granted you such power. No matter its origin, its your process that allows for your enhancements—as you weave your body in the same way that a mage weaves their spells.

Starting at 7th level when you first ignite, you can choose to transform your body into pure magic for the duration of your ignition. While in this form, you gain the following benefits:

Once you use this feature, you must finish a short or long rest before you can use it again.

At 13th level, you take no damage and are unaffected by any other detrimental effects from spells you cast. If you would take damage from a sorcerer spell of 1st-level or higher that you cast, you instead regain 2d6 hit points. A spell can only cause you to regain hit points this way once.

At 17th level when you take the Attack action, you can replace one of the attacks with a spell that has a casting time of 1 action, which you cast as a part of the same action.

Once you use this feature, you must finish a short or long rest before you can use it again.

You personally manufacture the form you desire, which consists of constructed enhancements and fabricated body parts. While most evolutionists of this method enhance themselves with intricate, magical technology, some prefer to instead use earthen, elemental augmentations or stitched pieces of monsters. Regardless, evolutionists of this method are resilient and innovative. They constantly tinker, repair, and fine tune themselves, continually building towards something greater.

At 7th level, you innovate new enhancements. Choose two additional upgrades to develop. These upgrades don't need to meet any augmentation prerequisites, don't count against the maximum number of upgrades you can develop, and they are always activated for you. If you choose upgrades that provide you a choice when activated, you can make that choice when you finish a short or long rest.

Starting at 13th level, you modify your enhancements to cause less strain on your body. The base hit point reduction for your Metabolic Ignition is now equal to your proficiency bonus.

Starting at 17th level while you are ignited, you can use your action to unleash a final destructive blast, forming a line 100 feet long and 15 feet wide in front of you. Each creature in the line must make a Dexterity saving throw. A creature takes 12d6 lighting, radiant, or fire damage (your choice) on a failed save, or half as much on a successful one. The blast ignites flammable objects in the area that aren't being worn or carried, and does quadruple damage to all objects and structures.

After you use this feature, you are pushed 30 feet backwards from the direction you fired, your metabolic ignition and all of its benefits immediately end, and you can't use this feature again until you finish a long rest.

Your body is greatly mutated: flesh morphed, resized, and reconfigured. Parts grown, and possibly changed in color. These mutations could be included through a vile practice of alchemy, a powerful curse, or a symbiotic relationship with a parasitic creature. No matter the method, these evolutionists live on the edge—constantly pushing their body to its limit. When they modify themselves, their bodies undergo chaotic, potent transformations that push the boundaries of their psyche.

Starting at 7th level when you ignite a single augmentation, you can choose to enter a berserk state for the duration of your ignition. If you do, you instead ignite a random one of your augmentations and switch to a new random augmentation at the start of each of your turns while you remain ignited, determined by rolling 1d3.

Your size increases by one category for the duration—from Medium to Large, for example, causing your weapon attacks to deal 1d4 extra damage on a hit. Also, when a creature deals damage to you or ends their turn within your range while you are in this berserk state, you can make one weapon attack against them as a reaction.

Once you enter this berserk state, you must finish a long rest before you can do so again.

At 13th level, you can invoke a chaotic mutation within yourself. As a bonus action, you can gain a random augmentation out of those you lack, determined by rolling 1d3. Then, you gain a random Upgrade from that augmentation's category, determined by rolling 1d6.

You gain the benefits of the augmentation and upgrade for the next hour, or until you use this feature again. If either offers you a choice, you make that choice when you gain the augmentation or upgrade through this feature.

You can ignite this new augmentation, and you can enter your Metabolic Ignition as a part of the same bonus action used to gain it, provided you ignite the new augmentation as a part of it or use your Berserk Mutation feature when you ignite. If you use your Berserk Mutation feature with this extra augmentation, roll 1d4 each turn to determine the random augmentation that is ignited.

You can use this feature three times. You regain all expended uses of it when you finish a long rest.

Starting at 17th level you can push your body to extreme limits. If you start your turn ignited and choose to remain ignited, you can take an additional turn in combat directly after this one. During this turn, you must move directly towards the closest creature until you are within range to attack. Then, you must use the Attack action against them, using all your possible attacks, moving to attack the next creature if you fell your current target.

Once you use this feature, you must finish a long rest before you can use it again.