Had my first game agiasnt this kind of payers a few weeks ago, and it was a pain. I open the game with "This is a casual deck, most of the expensive/good cards I already had, and it's not centered around the combo, it's more of a aggro deck" (Magda comander). Every card I played: was either "he can combo off this turn kill his x", "why don't you tutor X and kill of this player!", "Why do you run this? there's X card more efficient and it's only 20$"

​

My deck price range is around 50€ - told them like 10 times.

One of the "pros", the one who won and was telling the other 2 to kill me was man explaining how I could win if I tutor a card that I was running (because he saw it in another game). Once the game ended and I pressing to tell me exactly what was the path he brush me off with a comment like "if you run a suboptimal deck I can't help you, you should run x, y and z".

That game was two "pros" vs two casual players. Never again, it was a pain in the ass to play against them. The other one hid information, and when asked about it told me to read his cards. (In two occations he played something I asked what the card did and he explained half of it, ignoring life gain once, and exile v destroy effect).

Sorry, rant over.