An exhausted warrior kneels amid destruction and smoke: a flame ignites on his chest, spreads over his body, he rises and fire explodes

Prompt

A warrior kneeling, exhausted, surrounded by destruction, barely conscious. 0-3s Stillness. Smoke everywhere. 3-5s Small flame ignites on his chest. 5-7s Fire spreads across body. Clothes burning away. 7-9s He rises slowly. Flames intensify violently. 9-11s Explosion of fire.