League of Legends Energy System: How Energy Champions Work in LoL

League of Legends Energy System: How Energy Champions Work in LoL

By Marcus Chen

March 10, 2025 at 10:04 AM

Energy is a resource used by certain champions instead of mana, displayed as a yellow bar. Unlike mana, energy has a fixed maximum cap that doesn't increase with level, making resource management crucial during combat.

Base energy stats:

  • Maximum energy: 200 (Shen has 400)
  • Regeneration rate: 10 energy per second (50 per 5s)
  • Full regeneration time: 20 seconds (40 seconds for Shen)

Champions that use energy:

  • Akali
  • Ambessa
  • Kennen
  • Lee Sin
  • Shen
  • Zed

Key characteristics:

  • Energy regenerates faster than mana
  • Cannot be depleted over time like mana
  • Limited maximum pool creates strategic constraints
  • Ultimate abilities don't cost energy
  • Ability costs often decrease with level
  • Champions have energy refund mechanics

Ways to increase energy:

  • Akali's Twilight Shroud (increases maximum energy)
  • Crest of Insight buff
  • Presence of Mind rune

Energy restoration abilities:

  • Akali: Twilight Shroud
  • Kennen: Mark of the Storm and Lightning Rush
  • Lee Sin: Flurry
  • Shen: Shadow Dash
  • Zed: Living Shadow

Notable facts:

  • All ninja champions use energy
  • Lee Sin is the only non-ninja energy user
  • Returning to spawn restores energy percentage-based
  • Previously, Dominion mode had increased energy regeneration (12/second)

Energy champions must carefully manage their resource during fights, as depleting their energy pool can leave them unable to cast abilities for several crucial seconds while it regenerates.

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