The Lexicon appears as a multifaceted obsidian prism containing swirling, luminous text that shifts between the languages of all ten realms. Its surface reflects prismatic colors corresponding to each magical school, while runic inscriptions continuously rewrite themselves as new magical interactions occur. The artifact resonates with a low, harmonic hum during significant magical events and grows warm to the touch when cross-realm energies converge.

It serves as the evolving dictionary of magical terminology that defines how wielders across all leagues communicate about and understand complex magical phenomena. The Lexicon actively expands its vocabulary as new magical interactions emerge from the Fracture's instability.