This card is truly one of a kind. It's the only card in Magic that forces a player to skip their next draw step. Now, forcing an opponent to skip a can be really good depending on the situation (such as countering the effects of Maralen of the Mornsong) and it can sometimes be useful on yourself (such as if you're going to draw out next turn or if you'll die because of Spiteful Visions), however it can easily be worked around. Every colour has cards that allow it to draw outside of the draw step, so forcing your opponent to skip their next draw step might not be that useful, depending on your opponent's deck's construction. However, this card is one of those cards that doesn't see play very often and it can throw a wrench into people's plans sometimes. Your opponent might have a Laboratory Maniac deck that revolves around cards like Howling Mine and Font of Mythos in order to draw out faster and this card gives you the chance to extend the game a turn in order to kill your opponent before they can draw out. It can also stop people who stack their decks in order to get "that winning card" for a turn, unless they have other draw abilities. That's what the biggest downfall of this card is in a nutshell: it works, only if your opponent isn't expecting it.
Pros: Stops an opponent from having a draw step, can save you from drawing out at the beginning of your own turn, can catch your opponent off guard
Cons: Only stops an opponent's plans if they don't have any other way to draw, relies on element of surprise or the arrogance of your opponent