Arena

[Venikx]

How many ranks? I thought diamond would be max, or how many points?

[Venikx]

Do the points save for ng+?

[chaos915]

The highest rank is Deity, which requires a ridiculous 10 million league points. I doubt they expect anyone to reach it before NG+.
By the end you earn 5 of each of the three league charms(permanent)

So the full reward is +50%HP/+50%Curse Tolerance/25% damage

[76561198421723590]

https://wiki3.jp/WitheringRooms/page/13
• Iron
• Bronze
• Silver
• Gold
• Platinum
• Sapphire
• Diamond
• Master
• Grandmaster
• Elite– 300,000 points
• Champion – 500,000 points
• Legend– 1,000,000 points
• Sage– 2,000,000 points
• Demigod– 5,000,000 points
• God – 10,000,000 points

[76561198421723590]

and the reward is：
League Curse Charm

Permanent Charm

A charred organ wrapped in tattered cloth taken from one of the Merry Band's banners. Reward for ascending the arena league ranks.

+10% max curse tolerance

League Damage Charm

Permanent Charm

An unknown organ wrapped in tattered cloth taken from one of the Merry Band's banners. Reward for ascending the arena league ranks.

+5% melee damage

+5% projectile damage

+5% spell damage

League Health Charm

Permanent Charm

A bone wrapped in tattered cloth taken from one of the Merry Band's banners. Reward for ascending the arena league ranks.

+10% max health