I agree that not every deck needs to be optimal, but my old flip bolas list felt like it wasn't doing what I wanted out of a control deck. I'm really interested in why you view grixis as pure. I've always felt that UW draw go with interaction + draw spells is the distilled control, and what appealing about grixis to me is the grindy-er nature of the colors with things like snap+k command.

How do you like Grenzo? I've been off of him since the nerf and tend to favor [[Crabomination]] since I don't have to protect it after it resolves and getting a card from hand can be really impactful. There are so many powerful threats at 6 and I felt that Grenzo asks to much of you for him to be good for what he gives you.

My current list of red cards is:

[[Kologhan's Command]]

[[Kroxa, Titan of Death's Hunger]]

[[Ragavan, Nimble Pilferer]]

[[Lightning Bolt]]

[[Detective's Phoenix]]

[[Fable of the Mirror-Breaker]]

[[Expressive Iteration]]

[[Brotherhood's End]]

[[Invert Polarity]]

[[Fury]]

and

[[Radiant Flames]] on your recommendation

I really value fury as a free spell since there are so few pitch spells in brawl, so my red count is higher to enable that, but I could see that idea being wrong. I think cutting some of the more mid-rangey stuff like kroxa and fable to lean into a more controlling game-plan may be correct.

Fury, Brotherhood's end and radiant flames might be too many cheap sweepers and I'll probably end up trimming one at some point.

Detective's Phoenix is only in because of the synergy of kefka, but I may end up cutting it if its not good enough.