exactly my thoughts. I only have 6 fights left in the campaign, and then it is grinding time too. It doesn't look like last 2 areas of the campaign scale at all. It's all just battles with computer opening with 27 - 33 hp cards, and buttplugs with marijuana with right cards can hit over their max hp on first attack turn.
I am also not a fan of the campaign unlock artworks. It seems like they have different artists for cards, stories, campaing, and levels.