Necroduality

Whenever a nontoken Zombie you control enters, create a token that's a copy of that creature.

Magic Online Promos

"Geralf's prowess continues to grow. He can now replicate my own creations with near-perfect accuracy."
—Ludevic's laboratory notes

Innistrad Remastered

Innistrad: Double Feature

Innistrad: Crimson Vow

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

If the copied permanent is copying something else, then the token enters as whatever that permanent copied.

The token copies exactly what was printed on the original permanent and nothing else (unless that permanent is copying something else; see below). It doesn’t copy whether that permanent is tapped or untapped, whether it has any counters on it or Auras and Equipment attached to it, or any non-copy effects that have changed its power, toughness, types, color, or so on.