Content is now organized by game version and source

This link potentially matches multiple versions of "Gray Ooze":

• Gray Ooze (System Reference Document 5.2)

  CR 1/2 · Ooze (Medium)

• Gray Ooze (Monstrous Menagerie)

  CR 1/2 · Ooze (Medium)

• Gray Ooze (System Reference Document 5.1)

  CR 1/2 · Ooze (Medium)

• Gray Ooze (Black Flag SRD)

  CR 1/2 · Ooze (Medium)