ICR Upgrade
I think there is a problem with the upgrade rate of ICRs. According to your website: https://magic.wizards.com/en/mtgarena/drop-rates?utm_medium=product&utm_source=arena#golden-packs "The ICRs included in Daily Win Rewards are uncommon standard-legal cards*, each of which may upgrade to a rare card (1:10)." However I have played for at least three days and received all 18 ICRs from the daily win rewards but not one of them upgraded to a Rare Card. Maybe there is a bug in the latest relase. I would appreciate it if you could retroactively upgrade some of the cards or reward a wildcard.
Best wishes
Feanor#93649
shared this idea
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Rezzahan#77802
commented
You obviously don't understand how probabilities work. You have a CHANCE of 1/10 for any ICR to be upgraded to a rare. But that means, that in 18 cards, the chance of getting NO upgrade is pretty much exactly 15%, well within excpectable variance. On average, you can expect about 4 rares or gems in 40 daily ICRs, so about 4 per week. The bigger the sample size, the more it will even out on that 1/10. The smaller the sample size, and 18 is very small, the higher the chance of deviating from the expected mean.
In contrast, I have recorded my daily ICRs over the last 242 WEEKS, a total of 8944 daily ICRs, and gotten 887 raes, mythics, and gems, which is about 9,92%. So basically 1 in 10.