Ruin Serpent Boss
The Final Boss in Version 2 Series that was introduced in Version 2.6 & like other Bosses, it also required to complete the World Quest called Chasm Spelunkers. This Serpent can use Dark Mud to gain it's Energy & the Lumenstone Adjuvant is strongly recommended for clearing the Dark Mud to prevent the Ruin Serpent to use it's powerful attack or use every of the attack to stop it
Drops: Runic Fang & Geo Gemstones
Character Ascension Requirements: Kuki Shinobu & Shikanoin Heizou (⭐️⭐️⭐️⭐️) & Yelan (⭐️⭐️⭐️⭐️⭐️) (All of them are Harder to Ascend)
Weakness: When the Ruin Serpent is charging up it's powerful attack, use the Lumenstone Adjuvant to clear the Dark Mud or make a series of attacks to paralyze it