Though this does mean discarding the other cards you reveal, there are numerous ways this can pay off, especially as youre going to play a card thatd normally cost up to 6 Ink for absolutely nothing (well, except the cost of losing the other three cards you draw, of course!)
While there are cheaper options in mono-black like Raise Dead, Fell Horseman gets the edge in my opinion by also being a creature you can play later if needed
Any creature cards you draft that have that noted creature type get +1/+1 in draft matches
Making X hasty elementals is a new effect for Magic, but cloning is not and there are many better clones out there
In cube, this effect needs to be on a two-mana creature to compete
Blue has 'Keen Engineering', which slots Sai, Master Thopterist into the driver's seat