Create an intense scene where Elren the dark wizard, with dark cloak and dark l

Create an intense scene where Elren the dark wizard, with dark cloak and dark look tries to use a black magic spell to demonstrate his power, but it goes terribly wrong. Energies get out of control, creating an explosion of shadows and sparks, almost destroying a part of the Elfin kingdom. a ruined stone hall, from the kingdom of elfin home of the white elf wizards Elren's panicked expression is evident as he struggles to contain the magic.