During his match against Cain, King was shown using his power to trigger the old man's rheumatic joints.
Merlin further clarifies King's power as one that is capable of exercising complete control over life and death, by which the user can elevate or diminish the natural state of something. A slight scratch can develop into a severe wound, mild poisons become lethal toxins and a small tumor can rapidly spread throughout the body. It is a fitting power for one who calls themselves the Fairy King as it gives the user authority over nature, letting them grow and propagate the plants and trees as they see fit, or allowing them to wither and decay.
- Status Promotion「
状態促進Jōtai Sokushin (Sutētasu Puromōshon); literally meaning "Status Promotion"」: Using this technique, King can cause the slightest scratch to split open into a gaping wound.
- Condense Power「
養分凝縮Yōbun Gyōshuku (Kondensu Pawā); literally meaning "Condense Nutrients"」: King rapidly concentrates the remaining moisture within a tree branch, condensing it into a single spot. The condensed water droplet becomes a deadly bullet that King can freely control.