While more thematically matching crossovers like Final Fantasy tend to get full-size sets, secret lair crossovers provide a space for something smaller and often a bit more light-hearted, like Hatsune Miku or Monty Python
At a table with three other people, this is a +2 draw four cards a turn
After all, this has always been about seeing the future a little bit (the visions from the serum), but I think that this printing has shied away from the core message of the serum
The effort to get to 8+ is surprisingly low, especially with as big a payoff as indestructible and hexproof for your artifacts
It can animate an artifact at 4/4 (unless it's a vehicle, which will maintain its printed power and toughness)
It's one thing to cast an aggressive creature that can trade up