ok, so i cannot beat master eraqus no matter what i do! i need help! i've changed my deck like a thousand times and leveled up about ten more levels and i still can't get his life down even a pinch. help please!
It took me a while to beat him too, what I did was Grind in neverland until I was around Lvl 30-35, I was then able to beat him, but even at that level he can kill you pretty quickly with his stupid sliding dash attack and such. Just remember to block his attacks and counter them, you should be fine
You can also try shotlock before he attacks. It will not lower his HP much, but it is something. And he'll eventually slow down to catch his breath (he's an old man after all), so try attacking him when he does...