Since fire crystals and orbs were introduced,the only way of getting them without buying with energy is in treasure boxes. So I thought to myself I should get into a Treasure vault and get a nice supply of fire crystals and orbs. I found an elevator which has a treasure vault in tier 3,before getting there you need to complete 3 levels. The treasure vault is 1 of 3 levels that you can get (there's a question mark on the elevator so you can't know until entering) long story short,11 tries and everytime it's either graveyard or wolver den. So here's my question ladies and gentleman,is it a 33% chance or it's suppose to be rare and the chances are actually way lower? If so,i'd rather farm jk on elite all day and buy orbs and fire crystals from the vendor. It's easier and more fun. Also don't tell me to do fsc and get the 5* crystals and orbs there,i'm close but still not there..

Thanks in advance to everyone who helps :D