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

• The Serpent Sin of Envy Diane is a new STR-attribute Debuffer
• Collect Nightmare Traces from clearing missions
• Rate-up runs until December 17th

Netmarble is switching up the meta with a new hero within The Seven Deadly Sins: Idle Adventure - just because it's an idle experience doesn't mean you can't bring on the pain. In particular, you can look forward to adding the new STR-attribute Debuffer, The Serpent Sin of Envy Diane, to your lineup as the third Legendary Diane in the RPG.

In the latest update to The Seven Deadly Sins: Idle Adventure, you can nab the new character using Rate Up Summon Tickets or Diamonds from now until December 17th. Then, put your combat power to the test in the Nightmare Stages, as you can now collect Nightmare Trace and exchange these for Gems at the Wandering Merchant Shop. Additionally, Nightmare Trace can also be acquired via the Wandering Merchant’s Suspicious Missions event.

Now, you might be wondering what those Nightmare Traces are for, because why would you need another type of currency to keep track of? You can, in fact, put them to good use when equipping for Mystical Gem Box to get those extra buffs - not a bad deal especially when you're up against the Advent Battle Boss, Galland.

That said, are you on the hunt for more freebies? Why not take a look at our list of redeem codes to get your fill?

In the meantime, if you're eager to join in on all the fun, you can do so by checking out The Seven Deadly Sins: Idle Adventure on the App Store and on Google Play. It's free-to-play with in-app purchases.

You can also join the community of followers on the official Facebook page to stay updated on all the latest developments, visit the official website for more info, or take a little peek at the embedded clip above to get a feel of the vibes and visuals.