Vesuvan Duplimancy

If the copied permanent is copying something else (for example, if the copied creature is a Clone), then the token enters the battlefield as whatever that permanent copied.

If the target of the spell leaves the battlefield before the triggered ability resolves, use its characteristics as it last existed on the battlefield to determine the characteristics of the token created.

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 copied permanent will also work.

If the copied permanent is a token, the token that’s created copies the original characteristics of that token as stated by the effect that created that token.

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

The triggered ability of Vesuvan Duplimancy triggers only if you cast a spell that targets a single artifact or a single creature and nothing else. The ability will resolve before the spell that caused it to trigger, and a token will be created even if the spell you cast was countered or permanent it was targeting is now an illegal target.