The Monolith

The monolith was an object seen in Dawn of Ewoks and helped the Ewoks to use tools. It is actually a hunk of Carbonite that was accidently dropped by Phil on a carbonite carrying star ship orbiting Endor. The Ewok Wicket observed it and learned to make tools for all Ewoks.

Trivia

 * The monolith made a small cameo appearance in Battle of Endor.
 * The monolith is probably a homage to the one found in 2001: A Space Odyssey.
 * The monolith itself does not actually grant the power to evolve creatures, it is only a piece of carbonite. However, Wicket was inspired by the carbonite to invent tools for the Ewoks.