Bramble Shield is an absolute pain early in the game.  The best thing you can do is split up your group, so the queen can't afford to be in the same lane with her allies.  Your whole goal here is to not die and not fall down too far in war score until you get a few levels up.  Bramble Shield does not scale nearly as well once you're leveled up, and you should be able to run the queen over.

Don't fight 1v2... In general you won't win regardless of the demigods.

QoTs usually don't have a lot of HP and rely on their shields/allies to stay alive.  Focus-fire it for a while with your allies, and it should die quickly.  When fighting vs QOT /UB combination (or any QOT combination), make sure to focus on QOT if she's in range, because she's the weaker of the two.  Make sure to keep casting any supporting spells while doing that (heals, penitence, etc).

just be patient early game.  Pull back by your tower and hang out.  Farm some creeps.  Late game, her shield is pretty useless against good players. 

/Shrug, maybe it's because I always had sedna/beast on my team but usually Queen/Beast was only a problem until lvl 7, then you win compared to them since bramble shield doesnt scale with armor and doesn't remove debuffs. Before that, they'll have an advantage but meh, it's not really that big.

its actually quite big ...

Never really had all that much of a problem with it. Seriously.

u talking about brambles?

removing debuffs mid-late game is a huge advantage. and thats why brambles loses out mid-late game, it has no way of scaling. It may nulify a portion of dmg but at this point in the game, a huge amount of dps is at play.

I use Bramble Shield a lot (my build) and one of the best counters is Deep Freeze from Torchbearer. It increases the cooldowns on Shields and Mulch so much that the squishy QoT will have to retreat.

Generally it's always wise to primarily attack healers/supporters in fights and retreat if it's 1vs2.

I actually suggest just draw the game out. QoT gets more useless the longer the game goes

that's the problem with her, she scales bad! but on the other side, this is quite easy to fix.

The QoT's you fight don't use mulch do they? By the time you run through a good QoT's mana pool she will be far out of range.

Simply run the game to level 20. The effectiveness of bramble shield diminishes greatly from level 10 to level 15