Everything players feared about Artifacts has come true
Many players would still be playing if there was a continuation to this system: one where you unlock appearances through activities and achievements, not just item drop / RNG. Pursuing artifact appearances
Fresh FROST hidden artifact thread - Page 179
World of Warcraft - How I Obtained The Windwalker Monks Hidden Artifact Appearance - YouTube
Hidden Artifact Weapon Appearances and Effects - Wowhead
Patch 7.2: New Artifact Traits – The Dreamgrove
Hidden Artifact Weapon Appearances and Effects - Wowhead