You are the pinnacle of biological perfection; your cells are in a state of superposition, allowing them to be anything and everything simultaneously. All the adaptions you've gained could be used at once, meaning a single cell could simultaneously operate as your brain, organ, sensory node, or whatever else you require.
Your cells have already removed the need for breathing, eating, sleeping, and even aging as you are completely self-sufficient. Because of this, you possess physical strength that not many parahumans can match, skyrocketing mental capabilities that can even understand eldritch horrors, a wide array of nigh-impossible senses, and an instantaneous form of healing that makes total destruction appear as if you were not hit in the first place.
Your highly adaptable cells can grant immunity to any attack in 2-3 hits, adapt to hostile environments in seconds, and even ignore attempts to alter your mind or body. While you have a better-evolved form of healing, you can still gain mutations and adaptions. Due to this, esoteric or rare forms of offense with sufficient variety can cause your body to rapidly adapt to the point of negatively impacting your movements and actions. However, this doesn't last long due to your body's natural refinement of mutations that allow you to return to a normal human form with the additions of your new adaptions.
Thanks to this refinement, your cells can never have any permanent demerits that will get in the way of each other, such as negative mutations, subversion, unfixable changes, or unwanted assimilation. Anything that could negatively affect you will be adapted to. Your cells are also information black holes that make no sense to anyone but you and actively ignore forms of analysis; they could even self-destruct and vanish for this purpose. Consuming biomass allows you to store or gain traits to improve or add adaptations without being exposed to danger or killed. You can also use the stored biomass to rapidly alter your physical form.
Your understanding and analysis of powers from your senses lets you break down and grow immune to even conceptual dangers. This allows further enhancement of adaptions based on experiences, battles, and information. An example of this is gaining immunity to hammers, which can escalate to being immune to blunt force. You can even develop entirely new adaptions based on observed technological and organic abilities, replicating them perfectly within you. In time, you can grow immune to everything ever imagined and shrug off things that make even the fabric of reality pale.