League of Legends Wiki

Catalyst of Aeons

Redirected from Catalyst the Protector

2,591pages on
this wiki
Add New Page
Comments61 Share

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.

Catalyst of Aeons is an advanced item in League of Legends.[1] 


Catalyst of Aeons item
Catalyst of Aeons
1100 Gold (350 Gold)

Cost Analysis*

Gold Value
  • 225 health = 600 Gold
  • 300 mana = 420 Gold
    • Total Gold Value = 1020 Gold

Gold Efficiency*

  • Catalyst of Aeons item.png Catalyst of Aeons is 92.73% gold efficient without the passive.

Builds Into


  • With the increased durability and sustainability it provides, Catalyst of Aeons item.png Catalyst of Aeons allows champions to remain in their lanes longer without needing to recall.


  • The word Catalyst means something or someone that precipitates or causes an event to happen without being used up itself, referring to the item's passive effect.
  • Catalyst mana restore is applied after resistances. The higher your resistances the less mana you will regain from damage.
  • Shields are treated the same as normal health for the damage to mana calculations.

Patch History


  • Renamed to Catalyst of Aeons from Catalyst the Protector.
  • Total cost reduced to 1100 Gold from 1200 Gold.
    • Combine cost reduced to 350 Gold from 450 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.


  • Health increased to 225 from 200.



  • Total cost unchanged.
    • Combine cost increased to 400 Gold from 325 Gold.




  • Total cost reduced to 1200 Gold from 1325 Gold.
    • Combine cost reduced to 325 Gold from 450 Gold.
  • Health reduced to 200 from 290.
  • Mana reduced to 300 from 325.
  • Passive health gain reduced to 150 over 8 seconds from 250.
  • Used in new item recipe: Ohmwrecker item.png Ohmwrecker.


  • Passive health restore on level up reduced to 250 from 300.
  • Passive mana restore on level up reduced to 200 from 250.
  • Passive health and mana restore now occur over 8 seconds after leveling up from instantaneous.
  • Passive is now unique.


  • Passive health restore on level up reduced to 300 from 425.
  • Passive mana restore on level up reduced to 250 from 325.
  • Health reduced to 325 from 400.


  • Health reduced to 400 from 425.

July 10, 2009 Patch:

  • Combine cost reduced to 450 Gold from 500 Gold.


  1. Itemlist on leagueoflegends.com

List of Items

Also on Fandom

Random Wiki