Siren is a collection for Ying released on September 11, 2019.
Siren Ying Collection
(Epic)
Release date: September 11, 2019
Limited
Pirate's Treasure Battle Pass Level 40 
Includes:
Siren
Limited
Siren's Reflection Pool
Limited
Release date: September 11, 2019
Pirate's Treasure Battle Pass Level 40