https://www.crazydaysandnights.net/2021/01/blind-items-revealed-46.html?m=1

A nice blind item to kick Blizzard while they’re down (the lawsuit).

TLDR: Blizzard has a patent designed to rig match making services to influence micro transactions.

Deductions based on it suspect all random events are done server side.

Also, Blizzard rigged the 2019 Hearthstone World Championship to curry political favor with China…mere weeks after banning multiple players for speaking out about oppression of Hong Kong.