After a busy 18 days, a group of players have won the race to complete World of Warcraft’s Sepulcher of First Ones raid on the mythic difficulty. Blizzard Entertainment confirms on Twitter that esports outfit Echo has pulled off the feat, wrapping up one heck of a marathon.

While Sepulcher of First Ones has been available on lower difficulties for a wee bit, teams have had new mythic mechanics to deal with to keep them on their toes. One of the trickier hidden phases comes during the Jailer encounter, as he would get 14.4% of his health back alongside a shield at one point. As Wowhead notes, one Echo player swapping to an Arms warrior from Fury made a massive difference as the boss is subject to the Mortal Strike spell.

The hardest part of the raid, though, was the sheer length of the race. Blizzard typically issues fixes and balance passes to keep things ticking at a decent pace, though 18 days is no mere weekend away. Another one of WoW’s top guilds decided to pause its progress and pick things back up on another day. Team Liquid initially flew to Massachusetts to raid together in one room, though fatigue and real-life commitments eventually caught up.

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