I'm surprised no has mentioned Skaffa yet. He's up there on the list of players I back off from.
Skaffa is not stamina, he is magicka heavy armor DK dual bars 1h Shield flame lash cheese spec, exploiting mechanics like flame lash going through dodge and stun into immobilize unbreakable stun exploit. When he overextends and overreaches his skill and build limit he attempts to spam mist form and escape. Nothing really special about it.