With CO powers, he can do this:
Poison Manipulation (Has stingers [ovipositor, dermal denticle, spur, cnidocyte, and tentacles], fangs, spines, blood, saliva, and mucus that carry an extremely toxic venom 1,200 times more toxic than cyanide that
causes involuntary muscle contractions, prevents natural muscle contractions such as those within the heart, paralysis [of the nerves, limbs, diaphragm, and usually the entire body, shaking, uncontrolled generalized muscle twitching, numbness, blindness, salivation, watery eyes, intense itching, extreme hypertension, hypotension, unconsciousness, elevated intracranial pressure, weakness, swelling, nausea, vomiting, fever, convulsions, dizziness, strong hallucinations, confusion, seizures, headaches, paresthesia [pins and needles], heartburn, diarrhea, generalized sweating, serious skin irritation [redness, white pustules, blisters, rashes, large lesions, and skin hemorrhaging], localized skin infection, necrosis, gangrene, elevated blood pressure, abdominal or chest pain, rapid heart rate, heart failure, liver failure, internal hemorrhaging in the gastrointestinal tract, lungs, eyes, liver, and kidneys, difficulty in breathing leading to respiratory arrest, multiple organ failure],
ruptures cells, tissue degeneration, dismantles the molecular structure of the area around the venom, destroys red blood cells, disables blood clotting, causes blood vessel leakage, thins blood, tissue death,
pain comparable to that of being shot and having a hot nail being driven into the body, waves of burning, throbbing, all-consuming pain that continues unabated for up to 24 hours, and pain so severe that it is capable of instantly sending a human into shock, and can lead to death within minutes. It can inject enough venom through bites so small and painless that the victim does not even know it was envenomated until after the effects have set in. It can also spray this venom at a distance. It also produces fruit, sap, pollen, and spores that are toxic to ingest, inhale, or touch that cause burning, tingling, and numbness in the mouth and lips, stomach pain, nausea, dizziness, sensitivity to light, blurred vision, tachycardia, loss of balance, staggering, dry mouth and throat, slurred speech, delirium, convulsions, skin pustules, disruption of cognitive capacities, hallucinations, loss of equilibrium, vomiting, numbness and prickling over the body, peeling skin on the face, hair loss, itching that lasts for several years, shrinking of the cerebellum resulting in speech impediment and problems with voluntary movement, rapid heart rate, decreased blood pressure, severe kidney failure, vision and auditory impairment, euphoria, relaxation, hepatitis, central nervous system depression, paralysis of the central nervous system, blindness, seizures, shock, internal bleeding of the digestive tract, acute respiratory failure, cardiac arrest, and liver damage, muscle and diaphragm paralysis, reduction of small blood vessel growth, painful convulsions, abdominal cramps, anorexia, repeated swallowing, profuse salivation, depression, uncoordination, frequent defecation, watering of the eyes, painful blistering that is intensified with exposure to sunlight [A single raindrop that has made brief contact with even carry this effect], severe stinging pain that lasts several days after even the lightest touch, hypertension, hypotension, amnesia, loss of connection with reality, tumors, paralysis of the heart, skin irritation, loss of appetite, weakness, abnormal acidity of the blood, hypotension and hypoxia, multiple organ failure, acute kidney failure, liver necrosis, disseminated intravascular coagulation, a coma lasting several days, and death in three minutes.)