Even if your deck has a really low curve, you probably want a sizable land count if youre running a 4- or 5-mana commander
Consequently, this Goblin Extortionist is absolutely required if you want your Commander deck to be competitive in the slightest
It would be one of those deals where the card is so good, it might warrant minor inclusion (or might not), but its really off-message and would be more help to the other person using it better
When you first ninjutsu it in, it gets you some nice value with its copy, but if you can then make an empty defensive board the next turn you get another two tokens
They get to choose if there are multiple Mons on the Bench
EDIT: After cinnaminhbun sold it I was able to buy it from the person he sold it to, so now that I have it in my possession, here a better picture than before: (Here a link to a side-by-side comparison with a Thick stamp.) One thing to note is that this non-Holo Thin stamp is not as Thin as a Thin Holo stamp