Match up against the same deck over and over again using your same deck over and over again.
Change your deck.
You then no longer match up against that same deck over and over again.
It's been like this for a long time. I don't care if people want to dismiss it as anecdotal evidence. But then they do that and say in the same breath say that MMR is set up to achieve a 50% win rate. That in itself is manipulation AKA rigging.
Why is it whenever this is brought up a bunch of wall defenders feel the need to tell you how wrong you are? I'm not going to waste my time with deck trackers. I have this thing called a memory. How about YOU use a deck tracker. Go ahead, play the same deck say 50 times. Tell me what what happens. Then switch your deck. Play another 50. Tell me what happens. And I won't ask for proof because I would believe you.
You're right it is anecdotal and pseudoscientific. Psychologically speaking those who claim to have bad luck with something usually don't actually have worse luck than anyone else. You're saying you aren't tracking this, just going on feeling. This isn't our experience so If you want to convince us by using a known fallacy as evidence its not going to work.
OK let's break it down for the simple around here.
This isn't about losing. This isn't about bad luck. I never said I was losing. Can you read?
AGAIN FOR THE UMPTEENTH TIME -
If you play the same deck long enough, you will notice a pattern of hitting a counter to that deck repeatedly. If you switch to another deck, you rarely see that counter deck.
Got it now? This isn't difficult. It goes in line with Blizzard wanting a 50% winrate. Duh der Do YoU unDerStand NoW?