|This article contains spoilers!|
Shadow Void was a dark and eerie space in alternate dimension that was accessible by numerous portals found throughout Roria for the 2017 Halloween Event. It could only be entered from 13th to 31st October, 2017. This was where the player could find and encounter Mythical Pokémon Marshadow during the event.
In order to reach the Shadow Void, the player had to find a dark purple portal, which appeared randomly at several locations at sunset and lasted overnight until sunrise. They could be found on Lagoona Lake, Routes 9 to 12 and 15, as well as Cosmeos Valley, the last of which would appear almost every sunset. Stepping on a portal would flip the player's screen and send the player into Shadow Void.
When the player was in Shadow Void, the same portal could be found at the beginning of this location for players to leave at will. Note that if the player saved inside Shadow Void, when rejoining the game, he or she would be ejected out of Shadow Void, and may have to find the portal again in another location.
Once the player reached the Shadow Void, he or she had to walk across a short bridge to another pillar, and then stand still for 3 seconds, looking away from where he or she came from. A shadow would form behind the player and a pair of fiery eyes would appear from it. Clicking the eyes would make the shadow rise from the ground, revealing itself to be Marshadow and initiating the battle. Be warned that the player only has 1 chance, so save beforehand and turn off Autosave. Dusk Balls provide the greatest effect because Shadow Void is only accessible overnight, and as Marshadow is extremely difficult to catch, buying plenty of Dusk Balls from Poké Ball Emporium, Anthian City - Shopping District is almost mandatory before confronting Marshadow.
Warning: Players can only battle the following Pokémon once! Save beforehand and turn off Autosave.
| Requires clicking the flaming eyes behind player on the shadow|
Recommended Poké Balls: 1 Quick Ball + Dusk Balls
|Marshadow||Lv. 40||One Only|
|If attempts of catching the above Pokémon failed, immediately leave the game and rejoin without saving, in order to secure a second chance.
Click on the Pokémon names to check their learnsets on Bulbapedia. All Pokémon above follow their movesets in Pokémon Sun and Moon. Hover on the item sprites to check the exact chance of being held by the Set Encounter Pokémon.
- This is the first and only event-exclusive location in Pokémon Brick Bronze as of now.