"coming into play power"

[TrEkIeV]

in Japan, "coming into play powers" do NOT exist. Muk -ex should be able to prevent powers such as legendary accent.

 

[bulbasnore]

They exist, but Muk EX stops them, e.g.:

Q. Does an opposing Muk-EX stop Milotic's power (or any other "coming into play power" on a different Pokémon) from working?
A. As soon as Milotic is evolved, "Toxic Gas" will prevent its Poké-Power, so Milotic cannot use "Healing Shower". (Apr 21, 2005 PUI Rules Team)