Octara is a tall and imposing figure with a humanoid upper body and an octopus lower body. Her skin is a dark blue and covered in a layer of shimmering scales. Her face is fierce, with sharp teeth and a determined expression. Her hair is long and flowing, made up of writhing tentacles that seem to move on their own. She wears a set of ornate robes that are adorned with intricate patterns of swirling tentacles, further accentuating her octopus-like appearance. In her hands, she holds a powerful staff that crackles with energy, ready to unleash its magical power upon her enemies. The overall feel of the artwork should be imposing and powerful, emphasizing Octara's formidable nature as a champion in the League of Legends.