Jo 'Fearless' Graylock is currently working at Riot Games Inc. as the Design Lead on League Labs.
- Champion Rework
- Systems Design
- Runes Reforged (Partly with Jordan 'Wrekz' Anton, Reina 'Reinboom' Sweet, and Stash 'Stashu' Chelluck)
- Elemental Dragons (Partly with Bryan 'Axes' Salvatore)
- Game Modes
- Nexus Blitz (Partly with Jordan 'Wrekz' Anton, Stephen 'Mortdog' Mortimer, Daniel 'ZenonTheStoic' Klein, and August 'jinxylord' Browning)
- Ultra Rapid Fire
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