"The Return of the Eastern Champion" is the fifty-ninth episode of Slugterra and the thirteen episode of season three.
- Eli Shane
- Beatrice Sting
- Kord Zane
- The Emperor
- The Pyritor
- Master Lian
- Shadow Claus
- Jonny Man
- The Outlaws
- Unstoppable Warriors
- Old Man
- Stone Warriors
- Yang (Mentioned only)
- The Eastern Caverns
- This is the season finale of Season Three.
- The Hoverblade's Megamorph Velocimorph debuts.
- All the Elemental Slugs but Doc are now Guardians, but their appearances never changed. This also marks last appearance for the Earth, Fire, Water and Air Elementals.
- Before performing the Fusion Shot with Doc, Charger is seen in his normal protoform, but after the fusion shot, Charger is seen in his Megamorph protoform.
- The Shadow Clan from "Slug Day" reappears.
- The story of how Yang defeated The Emperor as stated in "The Fall of the Eastern Champion" is told again.
- Hamengku and The Outlaws returned since "Slugterra: Eastern Caverns".
- The Tech Fu Controllers invented by Kord and Drucilla in "Eastern Tech" are mass-produced and used against Stone Warriors.
- The Pyritor returns since being turned to stone in "Stuff of Legend".
- Eli and Junjie do a double Slug Fu move using Burpy & Joo-Joo and a double Flamespire move for the third time since "Stuff of Legend" and "The Lady and the Sword".
- Eli used 'shared sight' on Burpy for the third time since "Slugterra: Eastern Caverns" and "The Lady and the Sword".
- The Emperor is shocked to see Lian alive after he has drained all of her life source to power up two Unstoppable Warriors in "The Emperor Strikes Back".
- The colours of Lian's clothes and blaster return to the same colours as seen in the flashback of Junjie in "The Fall of the Eastern Champion".
- The title of this episode looks like a reference to the 1983 movie Star Wars Episode VI: The Return of the Jedi.
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