http://www.wowwiki.com/Useful_macros/Warlock

cant even remmeber if warlock have pets at lvl 12

do something along the lines of
/petattack
/castsequence reset=combat/target Curse of Agony, shadow bolt, shadow bolt,shadow bolt,shadow bolt

slap into a macro drag the macro to slot one and yer fine for the next 8 or so lvls