The Seven Deadly Sins: Idle Adventure is adding The Serpent Sin of Envy Diane to your roster this month

Netmarble is shaking things up in The Seven Deadly Sins: Idle Adventure, proving that even in an idle game, you can pack a punch. Get ready to welcome the new STR-attribute Debuffer, The Serpent Sin of Envy Diane, as the third Legendary Diane to join your team in this RPG.

In the game's latest update, you have until December 17th to snag this powerful character using Rate Up Summon Tickets or Diamonds. Dive into the Nightmare Stages to challenge your combat skills and collect Nightmare Traces. These can be exchanged for Gems at the Wandering Merchant Shop, and you can also earn them through the Wandering Merchant’s Suspicious Missions event.

Wondering what to do with those Nightmare Traces? Use them wisely to equip the Mystical Gem Box and gain extra buffs, especially handy when facing off against the Advent Battle Boss, Galland.

Looking for more goodies? Check out our list of redeem codes for some extra freebies.

Ready to jump into the action? You can download The Seven Deadly Sins: Idle Adventure for free on the App Store and Google Play, with in-app purchases available.

Stay in the loop with the latest updates by joining the community on the official Facebook page, visiting the official website, or watching the embedded clip above to get a taste of the game's atmosphere and visuals.