How to get Valkyrie creatures of Sonaria?

Inquiring minds want to know, how does one acquire the elusive Valkyrie creatures of Sonaria? Are there specific quests or challenges that must be completed? Are there rare items or resources that serve as bait? Is there a secret location where these creatures are known to frequent? The Sonaria community is abuzz with rumors and speculation, but a definitive answer remains elusive. For those seeking to add a Valkyrie to their collection, the search is both exciting and daunting. Can you provide any insights or strategies for those hoping to encounter and capture these majestic creatures?