By the look of it, its pure random drop if ppl like nestro spend 2k on this event and didnt get it, when others spent a little less and got it
02:49 Fortune smiles on you! Along with the prize you won, you receive another reward: Lucky Scorpolion Statuette 1 pcs.
02:51 You have received: Pack of Cards 1 pcs
02:51 Guaranteed prize received for 100 games!
As you can see just before 100 th game