The more aggressive your deck is and the lower your curve is, the fewer lands you need and vice versa
Cards like Glimpse the Core and Three Visits let you have options on turn two while also not monopolizing your mana if you draw them later in the game
I mean, we could have gotten some adequate flavor text like, The Skullcap induces both paranoia and inspiration in equal measure, or, Were not sure if wearing it is agony or ecstasy. You could even add a bit of whimsy to it, I dont know if wearing it is torture or pleasure, but Im not putting it on! Shoot, you could even go with a creepy horror asylum concept like, After it was grafted to Patient 32, his face was rendered in two, one half fully ecstatic, and the other fully painful, as if his body could not choose which sensation it was experiencing
When I started playing, many of the cards reappearing in the Commander 2017 deck, "Feline Ferocity," were just being released
Round to the nearest
Right now in Standard I think that makes the card iffy for multicolor decks, but Dread Fugue is right at home in Mono-Black Midrange where casting it Turn 1 is basically free