[2020] How am I able to win 200m gp with 5 white gems?

Hey folks. the ticker at the bottom shows the prizes that are available for the duration of that promotion. So whilst you can't get a purple prize (200m) with that key, you may with be able to with your next. This is how it's always worked. For today specifically Clairvoyance is running so for a limited time you can see the rarity and reward behind some chests.