Quote Originally Posted by presquepartout View Post
the red splash is partially a relic of the TC format, where lightning bolt and pyroblast were where you wanted to be. a third color is almost free in these sort of decks, and i think the access to red or black post-board helps a lot more in blue match ups than something like mishra's factory.

edit: i've also never been a fan of detention sphere over oblivion ring, banishing light, or council's judgment. yes, it pitches to force of will, but it's best against decks that have access to pyroblast. additionally, the amount of times you get more than one permanent with it is extremely low.
Okay that makes more sense.

I definitely have some black cards in the sideboard like Thoughtseize which are playable off the basic Swamp and the Underground Sea and they definitely provide some reach not available in straight UW.

I don't really mind playing Detention Sphere over the mono white exiling enchantments, I'll gladly take the vulnerability to Pyroblast over the potential upside of hitting tokens and being able to pitch to Force of Will, though I do see your point.