Content is now organized by game version and source

This link potentially matches multiple versions of "Invisible Stalker":

• Invisible Stalker (System Reference Document 5.1)

  CR 6 · Elemental (Medium)

• Invisible Stalker (Monstrous Menagerie)

  CR 6 · Elemental (Medium)

• Invisible Stalker (System Reference Document 5.2)

  CR 6 · Elemental (Large)

• Invisible Stalker (Black Flag SRD)

  CR 6 · Elemental (Medium)