On both platforms is a new lockbox that Grinding Gear introduced — and the studio revealed an interesting surprise about it. The Fire and Ice Mystery Box includes 38 items, and some of these can be combined to create entirely new items and effects.
“While the primary motivation of this system is that it offers some extra value for players who buy boxes,” the team said, “it also has the helpful side effect of mopping up some duplicate microtransactions. While the existence of duplicates is priced into the model we use for boxes, we’re open to carefully adding some fun methods like this to remove some.”
Source: Press release, official forums