Hi there warlock / rogue here. Not sure what you guys have made about your wotlk talents but thought i would have a look, see what abilities you get to counter rogues (my main pvp char) then i saw this.
http://talent.mmo-champion.com/?mage=23552303103010312231220213000000000000000000000000000000005025020102300100000000000000
if the link doesn't work its basically PoM in arcane tree then the rest in fire......here my vision you run into arena crit twice doing whatever it is you do best then instant cast ptro, then pop PoM for another instant cast pyro...along with blast wave and dragons breath is this not dare i say....over powered (bold coming from a rogue / lock) but as my friend on ventrilo said "Fu%k me sideways i'm rolling a mage"