Forbidden Arena

Forbidden Arena is level 70 (originally level 69) dungeon released in March 2020.

Dungeon is single room with with only one boss, Hagufna which has slayer-like attacks. This boss is known in various other translations as Immortal Warrior or Immortalis.

Dungeon originally gave Undying Fighter's Ornament Fragments (tokens for Superior Exodor Brooch Chest).

Patch 98 (August 2020) added new version of the dungeon with Undying Warlord brawler boss (also known in de, fr as Aeternia, ru Этерния).

Forbidden Arena with Hagufna boss was closed in January 2021 patch v102. Brawler boss version is also removed with patch v108 release in August 2021.

Lore
Introductory quest takes you back to Wyvern Watch where Verdas has seen strange White Wolf hunting drakoloths and prions alike outside the camp.

"An Undying Fighter...I thought they were all destroyed in the Divine War."

"A doomed soul twisted by Killian's cruel sorceries, still alive after all this time...Lok must have sealed this place to contain it."

"If Exodor's arrival has cracked this barrier..."

- Halrath

Bosses
or
 * Hagufna, Undying Fighter (level 73)
 * Undying Warlord, Violent Brawler