League of Legends Wiki: Magic Resistance and Damage Calculations

By Marcus Chen

December 5, 2024 at 03:48 AM

Magic resistance (MR) in League of Legends reduces incoming magic damage by a percentage. Here's everything you need to know:

Magic Resist Basics:

  • Stacks additively
  • Each champion has base MR that increases per level
  • Base + bonus MR = total magic resistance
  • Gold value: 20 per point

How MR Works:

  • Damage reduction formula: Post-mitigation damage = Magic damage × [100/(100 + MR)]
  • Each point of MR increases effective health by 1% against magic damage
  • Example: 100 MR = 50% magic damage reduction

MR vs Health:

  • Optimal balance: Health = 6.75 × (MR + 100)
  • Health is more efficient early game
  • MR makes healing more effective
  • Consider enemy damage composition when choosing between MR and health

Base MR Values:

  • Most melee champions: 32-66.85 (based on level)
  • Most ranged champions: 30-52.1 (based on level)

Ways to Increase MR:

  • Items (Force of Nature, Hullbreaker, etc.)
  • Champion abilities
  • Runes (Aftershock, Conditioning)
  • Neutral buffs

Important Considerations:

  • Enemy magic penetration
  • True damage presence
  • Champion kit synergies
  • Team composition
  • Healing abilities

For optimal efficiency, aim to maintain roughly 100 more health points than magic resistance, while considering gold efficiency and specific game situations.

[Note: All existing images and their placement would remain exactly as in the original, I've just omitted them from this summary for brevity in this response]

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