The diamond-level title was named: Destroyer of the Underground Palace.
It had three effects.
Effect one: It allowed teleportation to any corner of the underground palace at will.
Effect two: It could imprison any poison within the underground palace.
Reborn as the Useless Heir Who Defied the Throne
Xuanhuan / Drama
Why Are My Squadmates All Heiresses?
Urban / Drama
Island Survival: I Became the Only Bodyguard on Death Island
Mature / Drama
Global Stat Points: I Maxed Out Attack Speed
LitRPG / Urban
After the World Became a Game I Chose Black Talent
LitRPG / Mature
LitRPG: I became the God of Mining
LitRPG / Xuanhuan
After Rebirth, I Stole My Brother's Fate
Mature / Xuanhuan
Endless Escape: I am the King of Vehicles
Harem / Sci-fi
Virtual Ascension: Awakening the Supreme Talent
LitRPG / Xuanhuan