There's two way to get it:
1- Doing dungeon Easy or Normal to get the box Sanctum Breakthrough Selection Chest from Sandstorm Temple to Forest of Echoes
2- Get 50 Sanctum Core and buy the box from Exchange Merchant Junsorei
I Hate this new breakthrough chest with all my heart, they have better make a easy way to get it because if the chest droped is like +500 gold even though i have been playing since they do the change and never saw that box and i do everyday all dungeon on F8
Evolved stones for snowballs are limited after the patch
in General Discussion
Posted · Edited by Emperor Von Einzbern
Looks like i'm not the only one, i didn't know about that either, all my hard work wasted.