Once you reach level 51 in Where Winds Meet, Attunement Stone will become important for you, it unlocks the 5th tune for all your gears, which make you stronger if you get the right stats.
There are three ways that you can get Attunement stone:
Win Hero’s Realm Bosses
This is guaranteed that you will get one attunement stone once you beat these Bosses in Hero’s Realm. Claim 3x to get three attunement stones.
To get into Hero’s Realm: Wandering Paths > Challenges > Hero’s Realm.
Win Sword Trail Bosses
There is a chance that you will get one attunement stone once you beat these Bosses in Sword Trail.
To get into Sword Trail: Wandering Paths > Challenges > Sword Trail > Select Any of the Bosses except joint battle.
Win Sword Trail Outpost Challenges
There is also a chance that you will get one attunement stone once you clear the outposts challenge as well.
To get into Sword Trail Challenges: Wandering Paths > Challenges > Sword Trail> Select Joint Battle.
Type of Attunement Stones:
There are different type of Attunement Stones:
 Doom | Tier 51 attunement gear turning. |
 Rhapsody | Tier 56 attunement gear tuning. |
 Gold Inlay | Tier 61 attunement gear tuning. |
 Fieryheart | Tier 71 attunement gear tuning. |
In short, Attunement Stone is crucial once you reach level 51, it helps increase your overall power by providing extra stats for your gears. It’s one of the most important materials to farm.
End.