if it is put into the graveyard from anywhere, it just shuffles back into your deck
It results in card disadvantage, leaving you with one fewer card in hand than before you played it, without adding anything to the board
Since 2011, when Wizards of the Coast co-opted EDH from fans and turned it into something even bigger and even better than it had been, renaming the format Commander in the process, they released a series of preconstructed theme decks, within which they added three oversized foil copies of the main legendary creatures from each precon
Tidus, Yuna's Guardian and its Final Fantasy Commander deck took ownership of moving counters and are very impactful with great planeswalkers, sagas, and a host of other cards beyond +1/+1 counters
The token created will replicate the base token, meaning if you try to copy a legendary artifact, you'll have to either immediately destroy the token copy or destroy the original, as only one can be on the board at any time