Um, we're out of time
You'll still need one copy of the Outlaws of Thunder Junction printing to be able to use that visualization, but once you have that single copy in your collection, the game will treat it as though you had four copies of the card from the preconstructed deck
Also, because it says sacrifice instead of destroy, it can combo with some really fun stuff in Commander - such as when paired with Tergrid, God of Fright, who will then give you control of all of the other sacrificed creatures
In many ways, it's better than a typical goblin lord
Oh and couldn't find Jorn, God of Winter Flip or Svella, Ice Shaper just looking for 3 mana legendary green creatures, unless I add in 'legendary snow creatures' which makes it feel like I'm expected to know snow creatures before actually looking for them
Learn to negotiate Pretty much everything in life negotiable, and this includes collections which are "priced fairly/firm/whatever." While in my ideal world the seller would always ask a price that I feel comfortable paying, this isn't always (or even usually) the case