- Acquired by completing Saint Adeline's questline.
"Milkweed" rune. Become a lumenwood to host phantasms.
- +10 Increase in Item Discovery.
- Players receive reduced fall damage while this rune is equipped.
- Unlocks the true form of Kos Parasite, and gives the player a bizarre movement animation, as if the body has no life and is being animated by the lumenwood like a mindless puppet.
- Equipped Hand and Head pieces of Attire will not be shown in the player model.
- The Hunter’s forearms and hands become a bluish white with slime-like tendrils, while the head becomes a spot for the lumenwood that resembles a tree or flower of the same color that glows slightly in the dark.
- Milkweed is one of the only two Oath Memory Runes that serve for players to transform their bodies, and change the moveset of a weapon. The only other existing one is Beast's Embrace.
- This is one of two Runes that have been said to be discovered by someone other than Caryll. The other is Guidance.
- The inscription of the rune appear to resemble the letters "H.P.", which could possibly be a reference to H.P. Lovecraft.
- With this rune the head and skin color resembles the Celestial Minions, implying a connection between their methods of transformation.
- Milkweeds are a larval food source for monarch butterflies and their relatives. The "relatives" can also be called "kin". Coincidentally, Ebrietas has the name of a butterfly.