To find this mob in-game, use BACKSPACE to open the World Search window, then enter Owenstein in the Search field and click "Search". Remember, the field is case-sensitive and must be entered exactly as shown.
Following the Anniversary Celebration in 2016, Celebration Certificates continued dropping in the Mirrorworld Instances. To give us something to do with this largess, They outfitted the Event Hosts to swing into action. See Celebration Certificate for more info.
During the 2016 Crafting Festival, this NPC would exchange Water Element ×20 for Earth Element ×20 up to 5 times per day.
During the 2017 Flower Festival this NPC would trade Vanilla Strawberry Dessert ×10 for Soulmate Mixed Dessert ×5.
During Summer Treasures this NPC (channel 1 only) will exchange Coin of Petals (7 Days) for Proofs of Myth.
During Pumpkin Festival 2017 this NPC (channel 1 only) will exchange Coin of Wind ×50 for Proofs of Myth ×3.
During 2018 Crafting Festival this NPC (channel 1 only) exchanges Hydro Draconaris ×20 for Geo Draconaris ×5.