PvP=trash for me

I’m playing full summoner necro and want to get the shitty PvP cosmetics unlocked. I know my build will forever be garbage, as I’m fighting via low IQ, low HP, low DPS summons, in a game where all you do is kill such mobs in .1 seconds. At this point I’m not even gonna ask blizzard to balance the builds, as they seem incapable of rational thoughts and human emotions.
So how do I farm this shit, without respecing? I’ve tried going into the barren wasteland of WT1 PvP, but it seems slow as hell.