User blog comment:Mich, Michele & Kuhla/Sneak Peek! Leon's Deception/@comment-220.255.1.82-20140926122405/@comment-25805173-20140926122551

Shadow Cloak & Rainbow Hide were not released with the dungeon. Gumi decided that stealth for 2 turns would be too overpowered in the arena and thus decided to withdraw it.