Spiraling flame illusion

this technique is Used by kenchi ravenclaw as his first signature technique it's a very high level (some states its A-ran k nd some say its s-rank)genjutsu it create's an illusion that the person on whom its being cast is frozen in time and space and is being burnt by black flames also in the space time area many spiraling black flames can be seen this jutsu is very effective it can paralyze as well as hypnotize the opponent.