Large dark dragon wreathed in glowing purple aura

a large dragon with dark purple appendages and black tails, emitting a light purple aura. a world made of a mosaic of colorful triangles, the upper part of the image is bright purple colors and the lower part of the image is dark red, in the background there are floating rubble and ruins, anime a large vertical wall into the mountains with carved stairs, a small village at the foot with a large magician's tower at the top, a radiating blue-red aura around the tower, and around the stairs there are multi-colored crystals reflecting the tower's aura,