The Sage Art: Frog Katas is a unique combat technique manifested as a swirling aura of natural energy around the user, resembling the fluid movements of a frog. The aura is depicted with vibrant, cel-shaded colors, primarily in shades of orange and blue, symbolizing the fusion of physical and natural energy. The energy forms a dynamic, organic shape that flows and pulses with the user's movements, featuring intricate, wave-like patterns that give it a lively, almost liquid appearance. The surface of the aura is smooth yet slightly textured to suggest the raw power of natural energy, with occasional spark-like effects to emphasize its potency.