Marathon Mastery Skins Boost

Buy Marathon Mastery Skins boost and unlock the Shadow Index skin for your chosen Runner without getting stuck on grind-heavy challenges.

What you’ll get

1. Completion of selected mastery challenges or full mastery completion for your chosen shell
2. Unlock of the Shadow Index mastery skin
3. Codex progression tied to Runner challenges
4. Additional XP from completed runs and extractions
5. Progress toward titles, emblems, and cosmetic rewards

This Marathon mastery skins boosting service focuses on shell-specific Codex challenges, which require precise ability usage, kills under conditions, and successful extractions under pressure. It guarantees mastery completion for your selected Runner, helping you secure permanent cosmetic rewards that carry across seasons.

Before you buy the Marathon Mastery Skins unlock service, please check these requirements:

• Access to Marathon on your account
• Selected Runner shell unlocked

The Marathon Shadow Index skin boost is delivered exclusively via the Piloted method, which means one of our professional players will log into your account and complete the activity on your behalf.

To ensure a smooth and uninterrupted experience, we kindly ask that you do not log into your account while the boost is in progress. Once the service is complete, you’ll be notified immediately and can log back in to enjoy your rewards.