Contents
  1. Cosmic Battle Chest: Item Guide
  2. 2026 Edition
  3. 2023 Edition
  4. Cosmic Battle Guide

Cosmic Battle Chest: Item Guide

  • Availability: Obtainable exclusively through the Cosmic Battle Shop and The Pass of a Warrior event.
  • Reward Structure: Features a Matryoshka-style (nested) reward mechanic, meaning opening a chest has a chance to grant additional chests.
  • Overall Value: While it does not allow players to target specific Enhancement Effects, the overall rewards are generally considered reasonably valuable.

2023 Edition vs. 2026 Edition

  • Different Drop Rates: Two distinct versions of the Cosmic Battle Chest exist with different Matryoshka continuation rates. Based on available data, this appears to be an intentional design difference rather than a statistical anomaly.
  • Higher Continuation Rate: The version introduced in 2026 appears to have a higher probability of generating additional nested chests than the original 2023 version.
  • Identification: If both variants are present, the 2023 Edition appears first in the inventory list.
  • Contents: Both editions share the same reward pool; only the drop rates differ.

2026 Edition

Unboxing 6,000+ Root boxes

Cosmic Battle Chest, 6,519 pieces opened. For your reference. (Thanks to DASHIMAKI-TAMAGO and japanese-chat for their help!)

  • 2 Cosmic Battle Chest : 2,642 (40.5％)
  • 5 Huge EXP potion : 228 (3.5％)
  • 3 Rare enchantment rune : 254 (3.9％)
  • 1 Great enchantment rune : 221 (3.4％)
  • 5 Flawless Artifact Essence : 234 (3.6％)
  • 5 Flawless Artifact Scroll : 198 (3％)
  • 5 Flawless Artifact Metal : 222 (3.4％)
  • 1 Chaos Core : 307 (4.7％)
  • 15 Chaos Particle : 338 (5.2％)
  • 50 Intelligence Skin Stone : 285 (4.4％)
  • 50 Strength Skin Stone : 232 (3.6％)
  • 50 Agility Skin Stone : 225 (3.5％)
  • 100 Outland Coin : 186 (2.9％)
  • 100 Artifact Coin : 232 (3.6％)
  • 30 Random Crystal : 372 (5.7％)
  • 150,000 Gold : 322 (4.9％)
  • 500,000 Gold : 21 (0.3％)

Estimated Value of Cosmic Battle Chest

  • Including Gold: 249 Emerald
  • Without Gold: 226 Emerald

Cosmic Battle Chest Value Ratio

  • Runes : 19.6%
  • Artifacts : 10.2%
  • Huge EXP potion : 1.9%
  • Chaos Core : 19.1%
  • Chaos Particle : 11.6%
  • Artifact Coin : 1.5%
  • Skin Stone : 15.6%
  • Random Crystal : 8.7%
  • Outland Coin : 2.5%
  • Gold : 9.4%

Expected value: 100 Cosmic Battle Chest

  • Runes : 49
  • Artifacts : 264
  • Huge EXP potion : 93
  • Chaos Core : 25
  • Chaos Particle : 412
  • Artifact Coin : 1,897
  • Skin Stone : 3,035
  • Random Crystal : 902
  • Outland Coin : 1,531
  • Gold : 4,677,103

2023 Edition

Unboxing 2,000+ Root boxes

Cosmic Battle Chest, 2,006 pieces opened. For your reference.
(Thanks to DASHIMAKI-TAMAGO and japanese-chat for their help!)

  • Cosmic Battle Chest x2 : 777 (38.7％)
  • Huge EXP potion x5 : 70 (3.5％)
  • Rare enchantment rune x3 : 83 (4.1％)
  • Great enchantment rune x1 : 68 (3.4％)
  • Flawless Artifact Essence x5 : 74 (3.7％)
  • Flawless Artifact Scroll x5 : 70 (3.5％)
  • Flawless Artifact Metal x5 : 62 (3.1％)
  • Chaos Core x1 : 113 (5.6％)
  • Chaos Particle x15 : 120 (6％)
  • Intelligent Skin Stone x50 : 72 (3.6％)
  • Streangh Skin Stone x50 : 77 (3.8％)
  • Agillity Skin Stone x50 : 60 (3％)
  • Outland Coin x100 : 82 (4.1％)
  • Artifact Coin x100 : 90 (4.5％)
  • Random Crystal x30 : 94 (4.7％)
  • Gold x150,000 : 88 (4.4％)
  • Gold x500,000 : 6 (0.3％)

Estimated Value of Cosmic Battle Chest

  • Including Gold: 218 Emerald
  • Without Gold: 200 Emerald

Cosmic Battle Chest Value Ratio

  • Runes : 19.5%
  • Artifacts : 10.1%
  • Huge EXP potion : 1.8%
  • Chaos Core : 21.9%
  • Chaos Particle : 12.9%
  • Artifact Coin : 1.8%
  • Intelligent Skin Stone : 13.6%
  • Random Crystal : 6.9%
  • Outland Coin : 3.3%
  • Gold : 8.3%

Expected value: 100 Cosmic Battle Chest

  • Runes : 42
  • Artifacts : 229
  • Huge EXP potion : 78
  • Chaos Core : 25
  • Chaos Particle : 399
  • Artifact Coin : 1,988
  • Intelligent Skin Stone : 2,306
  • Random Crystal : 625
  • Outland Coin : 1,820
  • Gold : 3,594,675

The number of runes is converted into the number of Great Enchanted rune.

Cosmic Battle Guide

Cosmic Battle

Cosmic Battle Shop Guide

Version 5

Version 4

Version 3

Version 2

Version 1

Cosmic Battle: Battle Guide

The First Place: Cosmic Battle

Heroes That Could Possibly Save the Day in Cosmic Battle

Cosmic Battle Day 1: Jorgens Dominance

Cosmic Battle #3 Features

Top 50 Showdown in Cosmic Battle #10

Meta Teams in Cosmic Battle #11

Cosmic Battle #12: How to Defeat Heidi

The Pass of a Warrior

Tasks & Rewards Ver. 2

Tasks & Rewards Ver. 1

Cosmic Battle Chest

Event Bundles

Champion’s Treasure Ver.2

Champion’s Treasure Ver.1

Powerful Offer

Cosmic Battle Cosmic Battle Chest Events PvP Events Root box The Pass of a Warrior