If a card copied by the token had any "when this creature enters" abilities, the appropriate token also has those abilities and will trigger them when it's created. Similarly, any "as this creature enters" or "this creature enters with" abilities that the token has copied will also work.
Except for the listed exceptions, the token created by one of The Cloning of Shredder's chapter abilities copies exactly what was printed on the original card and nothing else. It doesn't copy information about the object that card was before it was put into that graveyard or before it was exiled.
The token isn't legendary and is a Mutant in addition to its other creature types. This is a copiable value of the token that other effects may copy.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Chris Seaman
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
