I am wondering, how can you get Holy Crates in Skyblock? I already got one by doing a challenge, but how can I get another one now? Just so you know, I won't be paying any money for crates even if I have to!
Shouldn't you be able to complete more challenges to get more keys? Doesn't have to be every challenge. Let's say a challenge every week?
Except challenges are limited, keys are limited to obtain for free. You may scout the market for keys to purchase using in game money but other than that, there are no other ways. I do not think IJAH will be adding more ways to obtain keys for free anytime soon as their whole purpose of free keys was to get players stuck into the game then eventually buying keys.
