[Updated] v.159 - MapleStory X Attack on Titan Update Notes

Interesting...

[Updated 1/23] Attack on Titan Relay

Medal. Untradeable, All stats +25, MaxHP/MaxMP +10%, Weapon Attack +18, Magic Attack +18. Earned by completing all of the following requirements:
- Mobility Training: Receive a score of SS
- ODM Training: Receive a score of SS
- Hand-to-Hand Training: Get at least 8 wins in a row
- Battle at Wall Rose: Receive a score of SS
- Attack on Titan Attendance Check: Complete 12 days

The medals appear to not have an expiry date.