With a 2/2 body, when you draw that second card each turn
If all goes well, you ramp, created a token, and fueled your graveyard for more action in this very active Sultai card
Voldaren Stinger is likely a much more important iteration of this effect, since BR vampires really cares about getting in a point of damage on the first few turns
Why focus on two colors and limit what cards you can draft when you can easily go 3 colors and just have more options
The serialized cards had the same art as the Retro Schematic frame, just with a new foiling method called the Double Rainbow
For example, you may find a card that's black, green, and blue as the black card and still find a green card and a blue card