Clone

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

Clone copies exactly what was printed on the original creature and nothing else (unless that creature is copying something else or is a token; see below). It doesn't copy whether that creature 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.

Any enters abilities of the copied creature will trigger when Clone enters. Any "as [this creature] enters" or "[this creature] enters with" abilities of the chosen creature will also work.