Blizzard has dismissed a World of Warcraft developer after the employee reportedly used development-only spells on a live game realm to help a friend defeat bosses more easily. The incident matters because it concerns the integrity of a live online game, where staff-only tools can give players an unfair advantage.

The alleged actions took place on a live realm rather than a testing environment, according to the report. Blizzard’s response indicates that using internal abilities to affect ordinary gameplay is treated as a serious breach of its rules and player trust.