[C9] Official Release Patch Note - 1.376 version

[Claire]

[Updates]
1. Ancient Arena Round update
- Round has increased to 63.
- Balance adjustment on lower rounds
2. Halloween decoration added
3. Valkyrie PvP rebalance
- Check out the details in the webzen note: Link
4. Even update
- Bring your friends
- Max level event
5. Event end
- Play C9 with us
6. Sales Update
- Super Growth Package

[Bug Fix]
TBA