I have trouble to win against my arena partners warlock (mostly furious gear + relentless offset) in duels with my mage (http://eu.wowarmory.com/character-sheet.xml?r=Die+Silberne+Hand&n=Nid, mostly deadly gladiator stuff + relentless offset). I have about 2200 +damage and 130 spell penetration and enough hit.
I've already read Alcas dueling guide (http://wowriot.gameriot.com/blogs/Eurospective/Alca-Dueling-Guide-Part-4) but he says to kill the pet but I don't manage to do that. I did it once but then he just got his second pet out. He can heal the pet indefinitely with his life line and if he get's one chaos bolt + conflagate on me I'm dead. But if I get on him I don't get enough damage out especially with spell locks and he bursts me down quickly.
What can I do?
Edit: He is very experienced but one weekness he has: he does not fake cast.