I don't care if the Earth burns to cinders but for the love of Yawgmoth I hope Misstep is gone by Champs.
@vaughnbros the manabases don't even have to become inconsistent, they have the option to become painful while still being fetch/dual/basic
@dracomnisgt The list in that link is basically ad nauseum tendrils with painter/stone jammed in. It utilizes Reap well, but that doesn't go with REB. REB is good in general, but I also dislike calling "blue" on painter as you now allow the opponent to pitch any card - even land - to FoW. I'm thinking of building more around Painter and cards synergistic with a single color choice. Something like naming "White." Havoc becomes a cool card because for 2 mana, you get a 1-sided pyrostatic pillar. 10 spells and you win. You can also play gloom. 3 mana and it's a 1-sided triple sphere effect. By using black/red cards, you also get all the best tutors and goblin welder + goblin engineer.
I'd suggest R/B because of the welders and tutors, but you could try red/white. White has 4x enlightened tutor, great foils to black, and that could let you utilize reap too if you go RGW. The design space is wide open. I wouldn't take a deck with one strategy and jam painter in it. Build around painter and make the grindstone an incidental win.
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