For X and three Green, you get a Sorcery that reads, Return X target cards with different mana values from your graveyard to your hand
If you don't control four or more artifacts at that time, the ability won't resolve and none of its effects will happen
Out of the box, this feels like a relatively weak precon especially compared to some of the heavy hitters that have come out lately
Back in March we got to reveal Magic: The Gathering's very first Spider-man cards as part of a special Scene Box outside of the main set
Even in this case, Commander trades for a good creature your opponent controls while leaving behind a ton of tokens for value
Speaking of Ben Stark, if you are really serious about getting better about limited, he has a comprehensive course on the topic at Spikes Academy