You need at least ok stats with divine shield and poison to be effective. If you can get a big cleave that can help too. You need the right hero (Rag, Rakanishu, alikair. Lightfang (golden ideal), amalgadon, cleave minions help. Chargla with Maexxna' and poison spore can be powerful. Best bet right now is power leveling as much s you can, try to get the best quillboard you can, and if looks like you are behind others, go menagerie with the best poison and cleave you can get. Transfer blood gems to cleave if possible.
I've seen some dragon builds compete and divine shield poison. But Quilboars are very dominant and Tess is playable again since everyone is going for them. I am taking her over just about all other choices.
I hate rushing up and getting squat. Don't think I have finished first yet without Quilboars. MMR is 5500ish.
@op: short answer - no, unless none of the players highroll into a lot of quillboars and start scaling. I've had games where i won with pirates and/or elementals because the quills weren't scaled enough or they misplayed something.
Long answer: blizzard's idea of "design", forcing OP tribes and making them present in every game shows how moronic they are. I can understand having the new tribe in every game for a while, to gather data, but it wasn't needed to make them OP. Even the shortest play test would've revealed they outscale everything else. Why not make them a god damn 'normal' level?! Because stupid people and ideas most likely.
BG’s is just a race to get golden bonker right now. Nothing else even comes close to scaling as fast as quillboars. Demons with 2 / golden juggler can work early to kill quillboar players before they have chance to develop but only a god board of poison divine shields will work once they’re just farming blood gems.