Outlaws of Thunder Junction store packs never upgrade commons to Big Score / Special Guest cards
I have opened 151 OTJ pack and have got only 3 Big Score cards, and zero Special Guests cards.
Quoting MTG Arena website, "1 Mythic card from The Big Score may replace the Mythic in Outlaws of Thunder Junction store packs at a rate of approximately 1:5. 1 Common in Outlaws of Thunder Junction limited packs will upgrade to either a card from The Big Score or a Special Guest at a rate of approximately 1:5. The Big Score cards in this slot are replaced with a Special Guest at a rate of approximately 1:12."
3 Big Score cards seems more or less within variance for "Big Score cards replacing OTJ Mythic 1:5", but absolutely not within any reasonable variance for "Big Score cards replacing one of the commons 1:5".
This announcement of incorrect pack odds is unlawful according to gambling legislation in my country.
I demand reimbursement in form of either Mythic wildcards or actual 30 random Big Score cards added to my account, thank you.