From the expected anime-esque aesthetic that defined the early designs, to abstract, hallucinogenic interpretations of Pokmon, the eye-catching art is a large part of what drives people to spend staggering sums on booster packs
There are four big remaining proliferate cards to consider: the best is Yawgmoth, Thran Physician, which turns The Hollow into draw + removal and then you can spam proliferates for easy wins
Faciliers Cards provides a recurring discount to your actions, but it isnt worth playing in a dedicated emerald deck, where most of your actions are much lower quality compared to the other inks
In theory, Glimpse of Nature could do something similar in Modern, with Heritage Druid providing the mana to play through your entire deck in a turn before eventually winning with something like Craterhoof Behemoth
Its going to be interesting to see what comes out of that set too - and weve only got a couple of months before we find out