I think Arachna tank teams with a combo of the following heroes (sera dokras cara gale Mortus Arcturus) are kind of ruining the game. The only counter is to run the exact same team and hope you get lucky.
Maybe there should like a poison limit on arachnas 4th skill? It builds up to a point where melee characters with multiple attacks are worthless.
Namtar against arachna tank is so one sided because of his multiple slash move, really her as a tank renders most characters useless.
And before you say arachna tank is squishy, she gains a ton of life and defense from orange +1 and on. It's only going to get worse.
Don't really have a good solution, just wondering what others think. Right now epic is the most fun since I only have to deal with one arachna team. The other 2 battles are way more interesting.