so i just got out of a bg duo, where my team mate did absolutely nothing all match, i could see his mouse hovering over different areas on his map, so he was clearly at his computer.
purposly not buying cards or making a single move, and then as we were at 3 hp he used a demon card to eject us out of the match.
so the question is, how can we report this type of behavior? or will blizzard never care? the dude doesnt even show up in recent players tab. i have no idea how to find him.
Hi, I’ve been playing Hearthstone for 10 years now, I play True Hearthstone and sometimes Arena mode, I just wanted to ask what is Battlegrounds Duos?
Many players have asked to see the teammate’s battle tag, without success so far.
You can report the player if you have kept the name specifying the date and time.
I don’t know if there will be punishment by a game ban after investigation (without you knowing) but it’s worth a try.
The language will be adapted to your country, for me it is a French link but it will be displayed in English for you.
Don’t respond to the message above, it’s a troll : it’s best to ignore it.
Lotsa that going on in duos. Players leaving midway through match, not supporting you with critical passes. Is apain for sure. The Trolls have there account private so you can’t get battletag also. Just play through it my friend and enjoy the game. When you team up with a good player it is worth it. GG
Continuing the discussion from Battlegrounds duo's trolling:
Sure ! It happens 
It gets better once you get well above 7k. People dont want to take a (huge) hit from losing, because it is much harder to grow in duos. I saw in last 20 lobbies maybe 1 player, who intentionally griefed (in entire lobby, not my team).
Some people are still bad, but at least they dont grief.
This is the reason cooperative modes have not been implemented before. Anything that requires manual moderation gets put on the cancellation slate.
i have no idea if they enforce rules like that because i havent read any announcements about it
i think you and other BG players on the forums would start enjoying duos more if you make a thread to meet other BG players and start adding each other to play together