If the game stretches out, you might even be able to drop the Cordial Vampire and then burst-kill someone out of nowhere, thanks to how well it plays with Kalastria Highborn and Blood Artist when fueled by zero-mana sacrifice outlets such as Viscera Seer, Stromkirk Condemned, and Bloodthrone Vampire
Shimmerwilds Growth's last ability is a mana ability
That first milestone is table stakes for the Pro Tour
While Imps Mischief is in some ways better, because it gives a Deflecting Swat effect to Black, its also nearly $30, and not worth it unless youre playing at the highest power levels in which case youre probably playing red and/or blue anyways, defeating the purpose
Even if you have 10,000 cards, you arent going to make a lot money on them if theyre only worth $0.01 a piece