Elvia Marni's Stone (Northern Plain of Serendia)

- Description: Elvia-obsessed Mad Scientist Marni's Stone. You can collect samples from monsters you killed. Once the stone is filled, you can exchange it through NPC Wacky Toshi. Target: Elvia Northern Plain of Serendia enemy x1,100 - Exchange List Shard of the Tearful Night x1 Okiara's Tide x1 ※ Can be used from Lv. 61. ※ Samples can only be collected if you make the last hit.

- Additional use requirements are not yet decoded; this is not a complete eligibility check.