Like most Magic: The Gathering cards, the value of Fatal Push depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Double Masters)
This sort of mana production and extra utility is a lot for a 2-drop, even if it's restricted to a very specific style of deck
When it's put into the graveyard from the battlefield, you may put its +1/+1 counters on target artifact creature, no matter what Power Depot's card types are at the time
It also contained 121 "play-test cards" that were all mock play-test sticker cards, with text ranging from "this could potentially see print" to "this barely works in the rules." These cards are of course not legal in any Constructed format, just the Limited formats you would play Mystery Boosters with
The original and only printing has the word successfully cast a card
Exxaxl: We actually know very little about these precons at the time of writing