Are there 5/5 Beast Token cards?
Here's a pretty comprehensive list of official MTG tokens and similar cards. I can't find a 5/5 Beast on that list.

As a rule of thumb:


Putting tokens in packs only really started around Tenth Edition, and has been done consistently since. The cards from before that are special promos.
In the modern day, sets sold in booster packs have tokens and emblems as some of the inserts (typically mixed with ad and rules tip cards). Pre-built sets like Commander products and Duel Decks may or may not come with token cards.
Wizards of the Coast does not make "copy" tokens (how would you?), but they do print specific tokens with abilities listed on the cards, as well as tokens with variable P/T.


In this case, the cards that produce 5/5 Beasts are from Mirrodin and Commander 2013. Mirrodin came before Tenth Edition, while Commander 2013 is a non-randomized set that didn't include tokens.