Originally Posted by VirginPrince

It seems to me that the chances are determined by the actual wait time.

I'm still waiting to see if it is actually possible to get the limited cards with nothing more than a 2 point donation to Kurito.

Yes you can... 1000 candies and 1,000,000 pero later got one of the cards. I think it was the r card wasn't paying attention. that said, I believe its all rng. the lower the gift the higher the shitty rewards chance are. (and vice versa)