The Ultimate Battleground!

The Ultimate Battleground is the title of the Masters of the Universe minicomic that introduces The Three Towers. It was packaged with the Eternia playset. The story was written by Phil White and artwork was drawn by Bruce Timm

Characters

 * Heroic Warriors:
 * He-Man
 * Rio Blast
 * Extendar
 * The Sorceress
 * Snout Spout
 * Evil Warriors:
 * Skeletor
 * Snake Men:
 * King Hiss
 * Tung Lashor
 * Rattlor

Summary
An earthquake occurs on Eternia, when Skeletor and King Hiss use their combined powers to cause Grayskull Tower, Central Tower, and Viper Tower to rise from the ground. The three towers hold secrets of great power, Grayskull Tower represents all that is good, Viper Tower all that is bad, and Central possessing both. Skeletor and King Hiss plot against each other so they can have the powers for themselves, meanwhile the heroes help the people that were injured in the earthquake. The Sorceress tells He-Man that the Three Towers have arisen from beneath the ground and explains that the Ancients sank them to prevent them from falling into the hands of King Hiss during his siege many years ago. Meanwhile, King Hiss hopes Skeletor will be caught in the trap at Central Tower's entry. But Skeletor is suspicious and lets Tung Lashor lead the way, who gets caught instead of Skeletor. King Hiss enters Viper Tower and when He-Man arrives, he captures Rattlor in Grayskull Tower's prison and heads to Central Tower. There, he and Skeletor fight, both empowered by the power of the tower. He-Man wins and realizes that the Three Towers are now the ultimate battleground for good and evil.

Trivia

 * The title of the fourth issue of the Injustice vs. Masters of the Universe comic book series, The Ultimate Battleground, is a reference to the title of this minicomic.