The brawl is kinda fun. Even with a sub-par intellectual on the other side you can still manage to win. I think Priest has a better chance to "carry" the match.
1-1 in 2 tries. First as Paladin we were 1 turn from winning but my partner had 9 health and Mecha had 10 attack to finish him off. I could have healed him up with a Refreshment Vendor but took a chance maybe Mecha would use a different ability. Thinking back, his abilities don't seem to be random, I thought they were. He ALWAYS draws the best answer. Anyway, I assumed it was randomized and so I chose to do 34 damage to Mecha instead of healing my friend up past lethal.
Next run I was Priest. I was trying to setup my partner for some sweet combos but he totally flopped lol. I dropped Millhouse and Coldlight to load up his hand with tons of free spells... His turn was truly a face-palm moment. We both had a few minions out, in particular I had a Holy Champion on board. My partner was 12 health and I was at 14.
He goes : 2x Holy Light (me) > 2x Blessed Champion (my Holy Champion) > Seal of Champions (my Holy Champion) >>>>>>>>> Lorewalker Cho
I had to laugh at that one.... next turn Mecha Assassinates my Holy Champion, which had 39 attack and Divine Shield, thus all his buff cards get wasted, and then after my turn Mecha uses "Destroy Lorewalker Cho" card.. Lol.
My partner was topdecking and mostly useless now but we still won the Brawl with me healing him every turn and me slowly doing dmg with whatever I could.