By GamGem ResearchLast updated 18 Oct 2026
Epic · Summoner's Rift
Catalyst of Aeons — the Rod of Ages Component
1,300gold
Catalyst of Aeons is the 1,300-gold step to Rod of Ages: 300 Health, 375 Mana, and Eternity, which restores 10% of damage taken from champions as Mana and heals you for 25% of the Mana you spend. Two Ruby Crystals and a Sapphire Crystal build it. Patch 25.21 cut its Health from 350 to 300.
What it grants
- 300 Health
- 375 Mana
Passive
- Eternity: Restores 10% of the damage taken from champions as Mana. Casting an Ability heals for 25% of Mana spent.
Catalyst of Aeons at a glance
Catalyst of Aeons is an epic item on Summoner's Rift that costs 1,300 gold: Ruby Crystal, Ruby Crystal and Sapphire Crystal plus 200 gold. It grants 300 Health and 375 Mana and the Eternity passive. It builds into 1 item: Rod of Ages. Priced by its stat block alone, it returns 90.4% of its cost in stats.
Build path
Combine cost
200
on top of 3 components, for 1,300 in total.
Builds into
How it performed
- Pick rate
- 0.0%
- Win rate
- 17.8%
- Completion
- Not counted
- Inventory slot
- 3
- Games
- 129
- Δ this patch
- Not counted
patch 26.18 · Ranked Solo/Duo · Master+ · EUW · KR · NA · 65,406 matches counted
Who buys it
- Top20.2%
- Mid62.8%
- Bot5.4%
- Support11.6%
Reach for it when
- Survive burst
- Long lane phases
Gold efficiency
90.4%1,175 gold of stats for 1,300
The stat block only — the passive is not priced.
51th of 76 items Riot tags Health, by this measure. Nearest: Shield of Molten Stone 90.7%, Bandlepipes 90.6%, Randuin's Omen 90.1%, Heartsteel 90.0%.
- 300 Health · 2.67g each, from Ruby Crystal
- 800g
- 375 Mana · 1g each, from Sapphire Crystal
- 375g
What Catalyst of Aeons builds into, in full
Rod of Ages 2,600 gold
Recipe: Blasting Wand and Catalyst of Aeons plus 450 gold. Grants 45 Ability Power, 350 Health and 500 Mana. Passive: Timeless, Eternity.
Catalyst of Aeons balance history
Riot's notes from patch 25.S1.1 to 26.20 change Catalyst of Aeons in 2 patches. The latest is patch 25.21, published 2025-10-21.
Patch 25.212025-10-21
- Health350to300
Why, in Riot's words
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.
Patch 25.072025-04-01
- Build PathRuby Crystal + Sapphire Crystal + 600 goldtoRuby Crystal + Ruby Crystal + Sapphire Crystal + 200 gold
- Total Gold Cost: Unchanged
- Mana300to375
- Eternity Mana Restored from Damage Taken7%to10% (Rog of Ages will also receive the same change)
Why, in Riot's words
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.
Other items for the same job
Quick answers about Catalyst of Aeons
- How much does Catalyst of Aeons cost?
- 1,300 gold in total — Ruby Crystal, Ruby Crystal and Sapphire Crystal plus 200 gold.
- What is Catalyst of Aeons built from?
- Ruby Crystal (400), Ruby Crystal (400) and Sapphire Crystal (300), plus 200 gold to combine.
- What does Catalyst of Aeons build into?
- Rod of Ages (2,600).
- What stats does Catalyst of Aeons give?
- 300 Health and 375 Mana.
- What does Catalyst of Aeons's Eternity passive do?
- Restores 10% of the damage taken from champions as Mana. Casting an Ability heals for 25% of Mana spent.
- Where can you buy Catalyst of Aeons?
- In Summoner's Rift and Howling Abyss (ARAM) — the maps Riot's own data marks it as sold on.
- What does Catalyst of Aeons sell for?
- 910 gold, against 1,300 to buy.
- Is Catalyst of Aeons gold efficient?
- Its stats are worth 1,175 gold at basic-item prices against a cost of 1,300 — 90.4%. The passive is not priced, so this measures the stat block only.