All Card Rewards in Gold III Daily Quest

Hey everyone. Hope your all having great season. I made Gold III again this season (insert cheer here) and am super excited. The last few days I have been fighting some hard battles trying to climb to Gold II and still have it in sight but haven't made it. I'm hoping before the end of the season I'm able to reach Gold II or at leat get a higher ranking than last season.

Today after finishing my quest I had a first for me, an all cards reward, no potions, no credits, no dec, just cards! I've had this in Bronze with 1 chest for the daily rewards obviously but I don't recall seeing this occur before, at least for myself when playing in Silver or Gold leagues. While I don't browse the rewards feed in peakmonsters often I sometimes do but I haven't seen this in my browsing, so my questions to all of you is, have you had this occur? Is this a super rare occurance of luck or does this happen more often than not?