How long are these chest offers going to stick around?
Who knows but I can tell you this - there’s only one red chest available, sold out after that.
Assume it’s the same with the others
Got some damn good stuff today - bought that red chest and finished off dungeon master card
I think the red chest at 50% off is a good deal.
You have a 50% chance to score a legendary and there’s a ton of cards, so if you hit a useful one you almost always can upgrade it.
Just remember that the quantity of cards is based on your progression in Explore mode. So finish off as many explore rooms as you can do / want to do before purchasing it for the best deal.