Board Thread:Game Discussions/@comment-84.27.24.93-20170218102224/@comment-4199297-20170222022444

If you're on global, then "big 4" is probably about 1 or 2 years obsolete by now. A few random tries at either the champion chest or a step chest would likely give you 1 or more armors with level 1 stats higher than a maxed "big 4". If you want to save your gems, old 4-star epic bosses are now scattered around adventure mode, but I don't think anybody has really inventarized how Gree scattered them armor strength wise, but some of the 4-star plus armors are close in strength to the current 5-star epic non-plus boss armors and could be easier to farm for.