Private browser-side plannerRiot Data Dragon 3.15.5

League Classic build planner

Combine one of 60 champions with historical spells, runes, mastery highlights, item stages and a skill priority. The result is a user-created plan, not an editorial recommendation or a launch-meta claim.

Browse champions Open mastery calculator

Quick Answer

What the planner does with your data

The planner has no backend, accounts or public submissions. Share links contain validated entity IDs only. Labels and notes stay out of the URL, analytics and public database.

User-created plan

Configure the build stages

Required selections use only entities already present in this project's source-labelled database.

Identity and evidence layer

ChampionPositionBuild layer

Summoner spells and runes

Summoner spell 1Summoner spell 2

Rune 1Rune 2Rune 3Rune 4

Key mastery nodes

Choose up to 6 highlights here. Use the mastery calculator for a complete 30-point tree.

Mastery 1Mastery 2Mastery 3Mastery 4Mastery 5Mastery 6

Starting and first recall

Starting item 1Starting item 2First recall 1First recall 2

Core, boots and situational items

Core item 1Core item 2Core item 3BootsSituational item 1Situational item 2

Skill priority

Priority 1Priority 2Priority 3Priority 4

Private label and notes

Free text is excluded from share URLs and analytics. It is stored only if you explicitly save this plan locally.

Plan labelNotes

Choose a champion and configure a plan. Everything stays in this browser.

JavaScript is required for planning

The evidence and privacy explanation remains available, while entity selection, local saving and sharing require JavaScript.

Entity-specific checks

Frequently Asked Questions

01Does the build planner publish my plan?

No. Plans never enter the public database and no account is created. localStorage is used only after you explicitly choose Save locally.

02Does the share URL include my label or notes?

No. Share URLs encode only allowlisted entity IDs and skill order, keeping free text out of request parameters.

03Why are Creator Tested and Launch Verified unavailable?

No current build passes those evidence gates. The planner preserves the three-layer model without presenting empty evidence layers as available data.

04Is a generated plan an editorial recommendation?

No. Every result is labelled as user-created, while historical entities keep their 3.15.5 source era and launch-verification limits.

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
/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
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