They're supported by all the amazing removal spells you'd expect out of these Mardu colors
Tokens from cards like Pinnacle Emissary, Third Path Iconoclast, and Thousand Moons Smithy are essential for aggressive artifact decks
Modern Horizons promises to be a tidal wave of new tools for the format and will probably have large and lasting repercussions on the format as a whole
I suspect it will see play in the absence of other options, but players will probably not be excited by it, since there is a vast canyon between the power level of the two options
Villain variants have a long track record of pulling outsized collector interest, and a fresh, unsettling alternate art on one of Disneys most iconic antagonists is exactly the kind of card that finds buyers well beyond the competitive crowd
Emissary Green seems overcosted at five mana for a 3/3 that must attack before you get any benefit, either Treasures or +1/+1 counters depending on how all the players vote (you should vote security yourself to boost Emissary Green large enough to survive combat)