Yggdrasil, the World Tree
World Tree+20 and upMerchant lineFinal form

Yggdrasil, the World Tree

Only the ghost merchant sells this line. A blade of it shows this look once its highest grade reaches +20.

Before and after

Tree That Holds the WorldTree That Holds the World+18 to +19Yggdrasil, the World TreeYggdrasil, the World Tree+20 and up
Final form

See every World Tree form on the World Tree swords page or the whole evolution tree.