Magic The Gathering - Unstable Booster Box (36 Packs)

Unstable is a booster-based card set for Magic: The Gathering that can not be used in legal Magic tournaments. It was released on December 8, 2017 as a standalone set. This is the third of the silver-bordered Un-sets and is designed to be drafted.

Unstable contains "216-ish" cards (5 basic lands, 75 common, 75 uncommon, 46 rare, and 15 mythic rare) and 20 foil tokens, and includes randomly inserted premium versions of all cards. The set explores new areas of Magic game design and continues the tradition of bending the conventional rules of the game in a fun and whimsical way. Unstable was designed to both be drafted alone and be mixed with other sets: according to Mark Rosewater, however, the best experience is probably when it's drafted alone. The expansion symbol is a wrench with an acorn-shaped hole.

The big difference between Unglued and Unhinged on one hand, and Unstable on the other, is that the first two were meant to be mixed in with normal Magic, whereas Unstable was built as a stand-alone limited experience.

The set features 'modern design sensibilities' and is built around a 'cohesive creative vision' It includes fun legendary creatures that can be utilized in the Commander format and some cards designed for Cube. Like its predecessors, Unstable features 5 full-art basic lands, but borderless instead of black-bordered. Every pack contains one of the five lands unless it is replaced by a Steamflogger Boss, which replaces 1 in every 121 basic lands. The set also features foil tokens, both for tokens produced by cards in the set and for popular tribes outside the set.

The set contains some cards at common which are functionally identical to existing black bordered cards or possibly "blackborderable". These had been included for limited gameplay purposes.

Unstable is only published in the English language.

Mark Rosewater had to wait 13 years after Unhinged before Unstable could be printed, as Unhinged had been considered a commercial failure. However, Rosewater and senior brand director Mark Purvis argue this wasn't because of poor sales, but because of overprinting. At the time, Wizards of the Coast didn't regularly create supplemental sets, so Unhinged was treated as a small expansion. Actual work on the set took six years. When design started, one of the goals, as proposed by the director of product design Mark Globus, was to explore what new printing technology might allow: however, none of these proposed ideas were feasible at the time the set was printed.[5]

The design of the set was finished in 2014. It was originally scheduled for summer of 2015, but was pushed back a year to make room for Modern Masters 2015. It was then scheduled for the summer of 2016, but the concern that its steampunk influence made it too similar to Kaladesh, pushed it back yet another year. It was then scheduled for summer 2017: however, after Conspiracy: Take the Crown was added last-minute, its release was pushed back to December.