TERA players can prepare for the Secrets & Shadows content update that includes the elin ninja by participating in the Seek and Spell event running from now through May 3rd. Ninja-themed costumes, accessories and more will be earned through participation.
Battling through dungeons and battlegrounds will yield either Shadow Letter Boxes or Level 65 Shadow Level Boxes, each containing a random letter to spell out one of several words that snags a prize when complete.
SECRETS—Completing this word produces a prize box containing either a Nightfall costume, a ninja-themed accessory, or other consumables.
SHADOWS—Completing this word produces a prize box containing either a Bloodshadow costume, a ninja-themed accessory, or other consumables.
ENCHANTING—Completing this word produces an Enchanting Event Box containing a tier 8 or tier 9 enchanting scroll, or other enchanting materials.
Read more precise information about how to earn boxes by heading to the TERA site.