Mishra, Eminent One

If the copied permanent is copying something else, then the token enters the battlefield as whatever that permanent copied (with the listed exceptions).

If the copied permanent has {X} in its mana cost, X is 0.

Any enters-the-battlefield abilities of the copied permanent will trigger when the token enters the battlefield. Any “as [this permanent] enters the battlefield” or “[this permanent] enters the battlefield with” abilities of the target permanent will also work.