Melee - Deal an additional 2% damage and receive an additional 1% damage; Ranged - Deal an additional 1.5% damage and receive an additional 1.5% damage
Row 1 · up to 1 point
Interactive historical toolRiot Data Dragon 3.15.5
League Classic mastery calculator
Allocate the 57 historical Offense, Defense and Utility nodes with tier gates, prerequisites, a 30-point cap, undo and share links. The tool is a 3.15.5 reference, not a claim about final launch values.
Quick Answer
What the calculator enforces
Rows unlock at 0, 4, 8, 12, 16 and 20 points inside the same tree. A named prerequisite must be fully ranked before its child can receive a point. The configured historical total is 30.
Allocation
Build a historical mastery page
- Used
- /30
- Remaining
Choose a node to start. The historical cap is 30 points.
Demonstration presets
Load a legal tree example
These presets teach the historical rule system. They are not editorial or launch recommendations.
Offense
Offense tree
points
Open
+5% Attack Speed
Row 1 · up to 4 points
+5% Cooldown Reduction
Row 1 · up to 4 points
Basic attacks and single target spells deal an additional 2 damage to minions and monsters;; This does not trigger off of area of effect damage or damage over time effects
Row 1 · up to 1 point
4 points required
Damaging an enemy with a spell increases allied champions' damage to that enemy by 1% for the next 3 seconds
Row 2 · up to 1 point
+10 Attack Damage at level 18 (0.55 Attack Damage per level)
Row 2 · up to 3 points
+16 Ability Power at level 18 (0.89 Ability Power per level)
Row 2 · up to 3 points
Killing a unit restores 2 Health and 1 Mana
Requires: Butcher
8 points required
Damaging an enemy champion with a Basic Attack increases Spell Damage by 1%, stacking up to 3 times (max 3% damage increase)
Row 3 · up to 1 point
+4 Attack Damage
Requires: Brute Force
+6 Ability Power
Requires: Mental Force
Increases damage dealt to champions below 50% Health by 5%
Row 3 · up to 3 points
12 points required
Damaging an enemy champion with a spell increases Basic Attack Damage by 1%, stacking up to 3 times (max 3% damage increase)
Requires: Spell Weaving
Increases Bonus Attack Damage by 5%
Row 4 · up to 3 points
Increases Ability Power by 5%
Row 4 · up to 3 points
Killing a champion restores 5% missing Health and Mana
Requires: Executioner
16 points required
Critical hits grant +5% Attack Speed for 3 seconds (stacks up to 3 times)
Row 5 · up to 1 point
+6% Armor and Magic Penetration
Row 5 · up to 3 points
Basic Attacks also deal bonus magic damage equal to 5% of Ability Power
Row 5 · up to 1 point
20 points required
+3% increased damage
Row 6 · up to 1 point
Defense
Defense tree
points
Open
Reduces incoming damage from champion basic attacks by 2
Row 1 · up to 2 points
+2 Health per 5 seconds
Row 1 · up to 2 points
Increases bonus Armor and Magic Resistance by 5%
Row 1 · up to 2 points
Reduces damage taken from neutral monsters by 2;; This does not affect lane minions
Row 1 · up to 2 points
4 points required
Melee - Reduces all incoming damage from champions by 2; Ranged - Reduces all incoming damage from champions by 1
Requires: Block
+36 Health
Row 2 · up to 3 points
Taking Basic Attack Damage from neutral monsters cause them to bleed, dealing damage equal to 1% of their current Health each second; This does not work against lane minions
Requires: Tough Skin
8 points required
Reduces damage taken by 3% from enemies that have impaired movement (slows, snares, taunts, stuns, etc.)
Row 3 · up to 1 point
+3% Maximum Health
Requires: Veteran's Scars
+5 Armor
Row 3 · up to 3 points
+5 Magic Resistance
Row 3 · up to 3 points
12 points required
Regenerates +2% of missing Health every 5 seconds
Row 4 · up to 3 points
Reduces the effectiveness of slows by 10%
Row 4 · up to 1 point
Reduces damage taken by critical strikes by 10%
Requires: Hardiness
Reduces damage taken by 4% from Area of Effect magic damage
Requires: Resistance
16 points required
Increases self-healing, Health Regen, Lifesteal, and Spellvamp by 10% when below 25% Health
Requires: Perseverance
+4 Armor and 2 Magic Resist for each nearby enemy champion
Row 5 · up to 4 points
Start the game with a 50 Health shield. This shield regenerates each time after respawning
Row 5 · up to 1 point
20 points required
Reduces the duration of crowd control effects by 15%
Row 6 · up to 1 point
Utility
Utility tree
points
Open
Reduces the casting time of Recall by 1 second;; Dominion - Reduces the casting time of Enhanced Recall by 0.5 seconds
Row 1 · up to 1 point
+1.5% Movement Speed
Row 1 · up to 3 points
+3 Mana Regen per 5 seconds
Row 1 · up to 3 points
Increases the cast range of trinket items by 15%
Row 1 · up to 1 point
4 points required
Reduces the cooldown of Summoner Spells by 10%
Row 2 · up to 3 points
+1 Health Regen per 5 seconds for every 300 maximum Mana
Requires: Meditation
Increases the duration of potions and elixirs by 10%
Row 2 · up to 1 point
8 points required
+1.5 Gold every 10 seconds
Row 3 · up to 3 points
Increases the duration of shrine, relic, quest, and neutral monster buffs by 20%
Row 3 · up to 1 point
+3% Lifesteal and Spellvamp
Row 3 · up to 3 points
Health potions are upgraded into Biscuits that restore an additional 20 Health and 10 Mana instantly upon consumption
Requires: Alchemist
12 points required
+1 Gold each time an ally kills a nearby lane minion
Requires: Greed
+40 Starting Gold
Row 4 · up to 1 point
+5% increased maximum Mana
Row 4 · up to 3 points
+10 Experience every 10 seconds while near a higher level allied champion
Row 4 · up to 2 points
16 points required
Melee - Grants +15 Gold on champion kill or assist; Ranged - Grants +3 Gold each time an enemy champion is attacked. This cannot trigger on the same champion more than once every 5 seconds
Requires: Wealth
+5% Cooldown Reduction and reduces the cooldown of Activated Items by 10%
Row 5 · up to 3 points
20 points required
+5% Movement Speed out of combat
Row 6 · up to 1 point
Entity-specific checks
Frequently Asked Questions
01Which version does the mastery calculator use?
Nodes, ranks, rows and prerequisites come from the Riot Data Dragon 3.15.5 historical snapshot. Launch-client values still need verification.
02Do share links create indexable pages?
No. Shared allocations use query parameters, every combination canonicalizes to the base tool URL, and query variants never enter the sitemap.
03Is my mastery allocation uploaded?
No. Calculation, undo, presets and share encoding all run locally in the browser.
04Are the demonstration presets launch recommendations?
No. They demonstrate legal 3.15.5 tree rules and do not claim launch strength.
Source Ledger
Sources, versions and evidence limits
Every historical record keeps its source era. League Wiki is identified as a structural or historical-data reference, never as Riot official.
| Source | Source Type | Version | Region | Verified Date | Used For | Evidence Status |
|---|---|---|---|---|---|---|
| Riot Data Dragon 3.15.5 | RIOT_HISTORICAL_DDRAGON | 3.15.5 | Historical static-data snapshot; not region-equivalent launch evidence | 2026-07-16 | champion identities, historical kits, historical recommended item sets, items, Tier 3 runes, masteries, summoner spells, historical assets | HISTORICAL_REFERENCE |
| /dev: League of Legends Classic | RIOT_CLASSIC_OFFICIAL | 2026-07-15 article | Global English | 2026-07-16 | OG 40 plus 20 composition, Tier 3 runes, mastery-system scope | OFFICIALLY_CONFIRMED |