Proving grounds is not playable.
The battle has went completely bonkers. It is impossible now. Way harder than before they nerfed it. Last month got easier following the nerf and now it's harder than ever. JKL(L), JML, JKR, GAS and B...
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Let that be motivation to get you roster built up to do the hard conquest, so you can unlock the characters in 3 conquests and totally forget about proving grounds...
