crystal
A desktop companion that syncs with your League client to track challenges, mastery, skins, eternals and champ select.
These screenshots show an unreleased version of Crystal. It will be out in the coming months.

Champions
Every champion in one roster: mastery level and points, classes, region, your goal, and which mastery challenges each one still counts toward.

Mastery path
Class challenge charts and the cheapest route to M7 and M10 for every class, so you know which champion to play next.

Challenges
Every challenge with its tier, progress to the next one, custom tags, and filters by queue.

Team Builder
Pick Harmony and Globetrotter challenges and copy a champion pool your whole lobby can draft from.

Skins
Skin challenge progress by rarity, the Orange Essence each tier costs, and what your loot already covers.

Eternals
Eternals progress for every champion, with role filters and the series you have left.

Profile
Show duplicate or bugged challenge icons on your profile, or set a custom status message.

Live lobby
In Arena, ARAM or ARURF champ select, Crystal shows the mastery of every pickable champion and lets you swap or trade without leaving the app.
Appears during champ select.