both profit from the artifact token production and convert it into some form of card advantage
9 Ral Zarek Walking Planes, Flipping Coins The original iteration of Ral Zarek has a powerful coin-flipping effect that usually results in a few extra turns, but it comes up very rarely
The -3 ability is great for creature removal in Standard, and not so great in formats that don't play on a lot of creatures (Modern, Legacy, and Vintage)
Despite all of this clear power and utility, only 25,000 decks are running Green Slime at present, which feels criminally low to me
There are also some great creature options too
I made it by starting out with a texture produced on nnnoise by fffuel, a tool that generates SVG (Scalable Vector Graphics) images of visual noise with some user customization options