Deceptive Frostkite

• WWizards of the Coast2025-04-04
  Official Ruling
  Any enters abilities of the copied creature will trigger when Deceptive Frostkite enters. Any “as [this creature] enters” or “[this creature] enters with” abilities of the copied permanent will also work.
• WWizards of the Coast2025-04-04
  Official Ruling
  Deceptive Frostkite copies exactly what was printed on the original creature and nothing else, with the listed exceptions (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.
• WWizards of the Coast2025-04-04
  Official Ruling
  If the copied creature is copying something else, then Deceptive Frostkite enters as whatever that creature copied, with the listed exceptions.
• WWizards of the Coast2025-04-04
  Official Ruling
  If the copied creature is a token, Deceptive Frostkite copies the original characteristics of that token as stated by the effect that created the token, with the listed exceptions.
• WWizards of the Coast2025-04-04
  Official Ruling
  If the copied creature has in its mana cost, X is 0.
• WWizards of the Coast2025-04-04
  Official Ruling
  You can choose not to have Deceptive Frostkite enter as a copy of another creature. If you do, it will just be a 1/1 Dragon with flying.

Rulings via Scryfall