How about not interfering with the shuffler and the matchmaking, just turn it into a random shuffler and random matchmaking within your ranking.

Just stop the obvious rigging of everything.
Oh there is this one card you have in the deck, guess you want it in every starthand even though it costs 9 mana. Yep, totally realistic.
Oh you dont like to play against this ONE specific deck, here have it 5 times in a row as opponent. We have to fetch people a few ranks up to accomplish that but who cares as long as you dont win, sounds good to us.

Just switch it all to random, too bad the lava lamp wall burned down, you guys could have learned a few things about random from it.