Green Goliath

Once you transformed you could never go back. The danger you could caused has made yourself a cast out. With this new form you learn how to utilize its abilities as you gain more experience as an adventurer.

Gamma body adaptability

Starting when you choose this path at 3rd level, when transformed and you use the rage ability, you gain resistance to acid, poison, necrotic, and radiant damage. Starting at level 10, when transformed and enraged, you gain immunity to poison and radiant damage.

starting at level 3, while raging and in transformation if you used a unarmed strike or grapple as your action you can preform this feature as a bonus action. Doing this deals an extra 2d6 bludgeoning damage, if it succeeds your enemy needs to make a strength saving throw. If failed they are thrown back 10 feet and knocked prone, if they succeed they aren’t thrown or knocked prone. (Dc 12 + str+ proficiency bonus)

Fractured mind

Beginning at level 6, You gain resistance to psychic damage while in your transformed state and raging. You also gain advantaged with wisdom saving throws as well as charisma saving throws

Gamma power plant

You emit an aura of poisonous gas around you at 15 by 15 ft. Every creature within this vicinity make a constitution modifier (Dc 10 + con + proficiency). If failed they take 2d4 radiant + 2d4 poison damage. If succeeded take half.

Healing Factor

Starting at 14th level, while transformed and enraged you can use your reaction to heal 1d12 + con modifier damage as a reaction, you can use this ability 3 times per short rest.

The Beast Within

You train with your gamma enhanced transformation, gaining some abilities and enhancing others. Beginning at 3rd level you increase your bonus of 1d4 to 1d6 + unarmed strike for your unarmed strike when in transformation.

Beginning at 6th level you increase your skill with this enhanced body and increase your gamma leaps jumping ability to doubling your jump instead of increasing it just by 50%.

Beginning at 10th level you increase your skill with this body even further gaining two abilities, gamma punch and thunderclap. Thunderclap is a ranged attack at where a gamma beast claps their hand together at incredible speeds forcing a shockwave outwards. Gamma punch is where the gamma beast intensifies his unarmed strikes with gamma energy increasing their damage.

Beginning at level 14, you further increase your skill with your gamma beast state increasing its overall strength and durability, allowing you to increase strength and constitution both by 1 when at ten feet (it doesn’t hinder when growing up to 12 feet increased constitution and strength) and when at 10 ft and above it counts as two weight classes above for when counting lifting strength.