In Brief:
- MARBLEX opened the swap letting Seven Deadly Sins NFT Adventure players trade a Demon Mark plus 140 MBX for a Demon Meliodas NFT on MBX NFT.
- Demon Meliodas carries a Level 1 lifetime mining allocation of 200 MBX, rising to a cumulative 900 MBX after a paid Level 2 upgrade.
- The swap is the payoff stage of NFT Adventure Season 2, which launched July 30 on Immutable using Kodansha’s Seven Deadly Sins license.
MARBLEX opened the Demon Mark swap on MBX NFT, letting players who cleared the Seven Deadly Sins NFT Adventure convert their reward into a Demon Meliodas NFT for 140 MBX.
Players who skipped the adventure can buy the same NFT outright for 180 MBX. Clearing the campaign is worth a 40 MBX discount, and nothing more.
Enjoying your journey in the NFT Adventure?
If you cleared the adventure with 7DS character NFTs and got a Demon Mark, swap it for Demon Meliodas on MBX NFT.
Demon Mark + 140 MBX = Demon Meliodas!
Stake it to grab a total of 900 MBX with a massive 3x higher APR!
Get Demon@MARBLEXView on X ↗
The Demon Meliodas collection is capped at 1,000. MARBLEX said close to 200 remained to claim shortly after the pool opened.
What the staking actually pays
Demon Meliodas is the only NFT in the season that mines MBX. Deposited into MARBLEX’s staking service, each one carries a lifetime allocation of 200 MBX at Level 1 and stops earning once that allocation is exhausted.
At that point the NFT hits 100% experience and becomes eligible for a Level 2 upgrade, which raises the maximum cumulative allocation to 900 MBX. The upgrade costs extra.
APR governs speed, not size. MARBLEX’s base rate is 100%, calculated as reward by level multiplied by base APR, and holders can shorten the payout period by staking additional MBX on top. That boosted MBX isn’t consumed and can be withdrawn at any time.
“Demon Mark + 140 MBX = Demon Meliodas! Stake it to grab a total of 900 MBX with a massive 3x higher APR!” MARBLEX said in a post announcing the swap.
How the Demon Mark is earned
The season runs on two linked collections. MBX 7DS Adventure holds the character NFTs used inside NFT Adventure itself, which clear stages and drop three ingredients that combine into a Demon Mark.
Each character NFT clears stages once. They’re consumable progression tools, not tradeable yield assets, and the Demon Mark is the only route from the first collection into the second.
Secondary trading for both collections runs on Immutable’s TokenTrove. Connecting to MBX NFT through an Immutable Passport wallet carries no gas fees.
Background
MARBLEX launched “The Seven Deadly Sins: Revival of the Commandments NFT” on July 30 at 14:00 UTC+9, the second season of its NFT Adventure service and its first built on IP licensed from Japanese publisher Kodansha.
The company distributed 20,000 experiential NFTs free to mark the launch. The first 4,000 users to complete every mission received additional rewards, and MARBLEX ran linked airdrops alongside the campaign.
NFT Adventure is MARBLEX’s own experiential format, in which users acquire character NFTs set in a licensed universe and complete missions with them. The Seven Deadly Sins season is the largest IP it has run through that format.
The manga has sold more than 55 million copies worldwide. Netmarble’s mobile RPG “The Seven Deadly Sins: Grand Cross” has passed 70 million downloads globally, and “The Seven Deadly Sins: Origin” topped free-to-play rankings on the PlayStation Store in the United States, Canada, Europe and Asia.
“The Seven Deadly Sins is a globally beloved franchise with an incredibly passionate fan community, making it an ideal partner for expanding the NFT Adventure ecosystem,” said Jin Pyo Hong, CEO of MARBLEX.
