As we said, this was usually limited to the first print run of a set and it was then replaced with Unlimited print runs, which were far more common
Yore-Tiller Nephilim Reanimator strategies are always fun for me, and Yore-Tiller Nephilim lends itself to a unique combat-centric approach instead of straight reanimation
"We luckily get to do a whole bunch of Marvel," Rosewater said, "but well start with Spider-Man." There's a lot to see, starting with all the main set Spider-Man cards
So if the big guy is not the right strategy, just attack suicidally, and then make an army instead
Then you can tap and sac this with the cost of four mana to Tutor an artifact to your hand
I suspect Goblin King cost another mana because there were twice as many Goblins in the first set as Merfolk, thus making him more effective