The Valkyrie set (Helm, Body, Legs, Boots, Gloves, Blade, Staff, Bow) is crafted by upgrading the matching Forgotten item with a Valkyrie Scroll. [1]
Rewards
Valkyrie piece
Matching Forgotten item + Valkyrie Scroll + 3,000,000,000 cash + 20,000,000 Mob Tickets, 50% success chance. [1]
Sources
Sourced from official update posts and in-game checks.