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Catalyst of Aeons League of Legends ItemPC

Catalyst of Aeons

League of Legends (PC) Catalyst of Aeons in Wild Rift

Catalyst of Aeons Current Status

Catalyst of Aeons has been changed in 13 League of Legends patches. 1 buff, 3 nerfs, 8 adjustments. Most recently nerfed in Patch 25.21 ().

Cost: 1300g
Health: 300
Mana: 375
UNIQUE Passive - Eternity: Restore mana equal to 10% of pre-mitigation damage taken from champions, and heal for 0 to 20 to 0 to 80 by 5 per cast. Toggled abilities can only heal for up to 20 per second.

Catalyst of Aeons Changes

Patch 25.21

nerf

Catalyst needs to be competitive with Lost Chapter in giving tankier AP champions enough mana to play out their laning phases. It does not, however, need to invalidate burst damage so strongly. So we're delivering a small health nerf until it's turned into Rod of Ages.

General

  • Health reduced to 300 from 350.

Patch 25.7

buff

Catalyst of Eons is a little weak for a laning epic. We'd like to preserve its distinct price point from Lost Chapter in order to retain some laning variance, but the item shouldn't be so painful to buy and we'd like its mana to keep up with its sibling.

General

  • New Recipe: Ruby Crystal + Ruby Crystal + Sapphire Crystal + 200 gold = 1300 gold.
  • Old Recipe: Ruby Crystal + Sapphire Crystal + 600 gold = 1300 gold.
  • Mana increased to 375 from 300.
  • Eternity mana restoration increased to 10% from 7%.

Patch 25.S1.3

change

General

  • Bug Fix: No longer displays higher values for Eternity's healing in the floating text display as if the user could heal for higher than the maximum allowed of 20.

Patch 14.19

nerf

General

  • Combine cost increased to 600 gold from 550 gold.
  • Total cost unchanged.

Patch 14.1

change

General

  • Health increased to 350 from 300.
  • No longer limits the user to 1 Mythic Component item.

Patch 13.18

change

General

  • Bug Fix: Now is properly counted as a Mythic component in the shop.

Patch 13.10

change

General

  • Is now a Mythic Component.
  • No longer builds into Abyssal Mask.

Patch 13.7

change

General

  • Total cost increased to 1300 gold from 1100 gold.
  • Combine cost increased 550 gold from 350 gold.
  • Health increased to 300 from 225.

Patch 13.1

change

General

  • Mana restored reduced to 7% pre-mitigation damage taken from 8%.
  • Heal increased to 25% of mana spent from 20%.
  • Heal cap increased to 20 from 15.

Patch 12.22

change

Returning alongside Rod of Ages as a one-stop shop for health and mana sustain during laning phase.

General

  • Updated icon.
  • Recipe: Ruby Crystal + Sapphire Crystal + 350 gold = 1100 gold.
  • Stats: 225 health, 300 mana.
  • Unique Passive - Eternity: Restore mana equal to 8% of pre-mitigation damage taken from champions, and health equal to 20% of mana spent, up to 15 health per cast. Toggled abilities can only heal for up to 15 per second.
  • Builds Into: Abyssal Mask and Rod of Ages.
  • Limited to 1 Eternity item.

Patch 10.23

change

Catalyst offered early access to the Eternity passive previously held by Rod of Ages and Abyssal Mask. With Rod's removal and Mask's update, the Eternity passive is gone and Catalyst no longer has a role to fill.

Patch 8.4

nerf

General

  • Removed from recipe for Hextech GLP-800.

Patch 6.9

new

Catalyst of Aeons added to League of Legends

General

  • Renamed from Catalyst the Protector.
  • Combine cost reduced to 350 gold from 450 gold.
  • Total cost reduced to 1100 gold from 1200 gold.
  • Removed: Valor's Reward.
  • New Unique Passive - Eternity: 15% of damage taken from enemy champions is gained as mana. 20% of mana spent is gained as health, up to 15 health per spell cast or 15 health per second for toggled spells.

Related League of Legends Items

Catalyst of Aeons League of Legends FAQ

Frequently Asked Questions
When was Catalyst of Aeons last changed in League of Legends?
Catalyst of Aeons was last nerfed in League of Legends Patch 25.21, released October 21, 2025.
How many times has Catalyst of Aeons been buffed or nerfed in LoL?
Catalyst of Aeons has been changed in 13 League of Legends patches: 1 buff, 3 nerfs, 8 adjustments.
Was Catalyst of Aeons changed in LoL Patch 26.14?
No - Catalyst of Aeons was not changed in Patch 26.14. Its most recent change was in Patch 25.21.
When was Catalyst of Aeons added to League of Legends?
Catalyst of Aeons was added to League of Legends in Patch 6.9 on May 4, 2016.