People just don't know how to counter so it seems OP. I myself just doublepress dodge and roll backwards as soon as i see Warden turn orange and yell "Pizza Combo". Works 70% of the times everytime.. Sure i loose 1/3 of my stam but its better than getting hit, besides by the time Warden actually gets to me i'm almost full stam again and the Warden has learned not to Pizza Combo me.
Sometimes dodge attack also works, but sometimes it's a free GB for him, dont quite know this, i think it depends how fast Warden cancel the charge