It's about time gMS get some concertation with kMS for exclusive item

Increasing the Pendant Slots: 30 Days
This item allows characters to equip 1 more Pendant than is normally allowed for 30 days. However, characters will not be able to equip more than 1 Special Equipment Item

Israeli?

MoN one-of-a-kind much?

Anyway, even if MoN is made one-of-a-kind this item in kMS allow people to grab a couple more stats, while in gMS it literaly allows you to not have to choose anymore in between HTP and MoN because you can wear both at the same time.

It's not only about that but most of the time gMS introduced smthg exclusive it turns out to be either badly designed (NLC bombs for instance) or totally broken with previous/forcoming items (hammer anyone?) or even both.