In the announcement post, EPICENTER revealed that MOUZ stated that "conflict within the team" was the reason they withdrew from the $300,000 tournament. With little time left to find a new team and for them to get visas for Russia, EPICENTER decided to invite HellRaisers to fill in the gap.

HellRaisers will have a chance to bounce back from a poor showing in Kiev next week in Moscow
EPICENTER explained that HellRaisers will be competing in the Wild Card qualifier on October 22 since they "were defeated in the CIS qualifier and are not eligible for entering the group stage based on their ranking". Instead, AVANGAR, the winner of the EPICENTER CIS Qualifier, will be moved up to the group stage directly.
As of now, the EPICENTER team list looks as follows:

Natus Vincere

FaZe

AVANGAR

Wild Card #1

Liquid

Ninjas in Pyjamas

Invite

Wild Card #2
The five teams that qualified for the Wild Card Qualifier will claim the remaining three spots at the tournament. The last invite will be handed to the team from that group (excluding HellRaisers) that has the highest HLTV.org ranking on October 19th, while the remaining four teams will battle for the last two spots in the double-elimination Wild Card LAN qualifier on October 22nd.
The following five teams earned a spot in the Wild Card qualifier:

ENCE

Virtus.pro

Swole Patrol

HellRaisers

5POWER


Swole Patrol #40


Braxton 'swag' Pierce

Ryan 'freakazoid' Abadir

Edgar 'MarKE' Maldonado

Jordan 'Zellsis' Montemurro

Austin 'Cooper' Abadir


Liquid #3


Nick 'nitr0' Cannella

Keith 'NAF' Markovic

Jonathan 'EliGE' Jablonowski

Epitacio 'TACO' de Melo

Russel 'Twistzz' Van Dulken


MOUZ #4


Tomáš 'oskar' Šťastný

Janusz 'Snax' Pogorzelski

Chris 'chrisJ' de Jong

Miikka 'suNny' Kemppi

Robin 'ropz' Kool


AVANGAR #26


Bektiyar 'fitch' Bahytov

Timur 'buster' Tulepov

Aidyn 'KrizzeN' Turlybekov

Alexey 'Qikert' Golubev

Dzhami 'Jame' Ali


Virtus.pro #30


Filip 'NEO' Kubski

Jarosław 'pashaBiceps' Jarząbkowski

Michał 'MICHU' Müller

Piotr 'morelz' Taterka

Michał 'snatchie' Rudzki


FaZe #6


Finn 'karrigan' Andersen

Olof 'olofmeister' Kajbjer

Ladislav 'GuardiaN' Kovács

Nikola 'NiKo' Kovač

Håvard 'rain' Nygaard


Ninjas in Pyjamas #9


Patrik 'f0rest' Lindberg

Christopher 'GeT_RiGhT' Alesund

Dennis 'dennis' Edman

Jonas 'Lekr0' Olofsson

Fredrik 'REZ' Sterner


5POWER #68


Gan-Erdene 'dobu' Batbold

Bat-Enkh 'kabal' Batbayar

ZhiHai 'QKA' Fu

Peng 'xiaosaGe' Song

Wei 'shuadapai' Wang


ENCE #18


Aleksi 'allu' Jalli

Jani 'Aerial' Jussila

Sami 'xseveN' Laasanen

Aleksi 'Aleksib' Virolainen

Jere 'sergej' Salo


HellRaisers #11


Kirill 'ANGE1' Karasiow

Vladyslav 'bondik' Nechyporchuk

Özgür 'woxic' Eker

Bence 'DeadFox' Böröcz

Issa 'ISSAA' Murad


Natus Vincere #2


Ioann 'Edward' Sukhariev

Danylo 'Zeus' Teslenko

Egor 'flamie' Vasilyev

Oleksandr 's1mple' Kostyliev

Denis 'electroNic' Sharipov