You might immediately wince at that price crash, but theres a simple reason
If you do this, make sure you keep the number of times you've cast each from the command zone clear for commander tax purposes
Howling Mine Howling Mine (and similar iterations like Dictate of Kruphix or Kami of the Crescent Moon) is central to whats known at Commander tables as group hug. In Commander lingo, thats cards that provide a benefit to one or several of your opponents
The counter ability was something any color could do back in the day to their enemy colors, even if they would be horrible color pie breaks these days, but these are more like black cards mirrored into white due to the life payment
...And you'll cast half the spells you would've otherwise, because you'll be spending all your mana on this to make you feel better about how you took a whole turn off last turn to cast it
Colorless card draw options include Mind Stone , Skullclamp , Mind's Eye , Staff of Nin , and Endless Atlas