Runes Reforged

Starting from Pre-Season 2018, Runes and Masteries are being combined into a single system, which combines elements of both. Summoners have access to a number of slots and may choose from a collection of Runes to occupy those slots. Similar to Masteries, Runes are restricted to collections that must be chosen prior to choosing individual runes.

The new system is available to summoners of all levels at no cost and can be customized in champion select, similar to Masteries. However, players may only have a limited number of saved pages but may purchase additional pages for convenience.

Overview
Summoners may choose two Paths, one Primary and one Secondary.
 * The Primary Path has one Keystone Rune slot, one Greater Rune slot and two Minor Rune slots.
 * The Secondary Path has two Non-Keystone slots - i.e. you have the choice between the path's Greater and Minor runes.
 * Each Slot has a unique selection of runes - i.e. an individual Minor Slot has between 2 to 4 choices that are only available from that slot, and the other Minor Slot will have different options.
 * An individual path cannot be both your Primary and Secondary path.

There are five paths to choose from, although two are exclusively available as Primary choices:
 * Domination icon.png Domination
 * Inspiration icon.png Inspiration
 * Resolve icon.png Resolve
 * Sorcery icon.png Sorcery (Primary only)
 * [[File: Precision icon.png]] Precision (Primary Only)

An additional Trait slot is depicted in the initial announcement but is not described in the text. Within a Riot: Korea stream, the slot is shown to provide a bonus based on your Path choices.

Compensation
Existing Rune purchases will be compensated as described below:
 * Runes
 * 40% refund for purchases prior to Season 2017
 * 100% refund for purchases during Season 2017
 * Undisclosed compensation for Snowdown Showdown runes.
 * Rune Pages
 * No refund for purchases. See below.
 * 50% refund for purchases, as well as an exclusive Runebooks Ward Skin.

Note that Rune pages are not being removed, so there is nothing to refund (although RP is being partially refunded as an act of goodwill). All purchases Rune Pages will remain available.

Domination
Domination can be chosen as either a Primary or Secondary Path.

Inspiration
Inspiration can be chosen as either a Primary or Secondary Path.

Resolve
Resolve can be chosen as either a Primary or Secondary Path.

Sorcery
Sorcery can be chosen only as a Primary Path.

Precision
Precision can be chosen only as a Primary Path.

Bonus Trait
The Bonus Trait is a largely undocumented feature, whose functionality is derived from a work-in-progress screen shot. The following is highly conjectural and subject to being completely inaccurate: