For one thing, its so overwhelmingly red
The Haunt of Hightower Into: Millmeoplasm For: Jaces Mindseeker The deck that mills is the deck that kills, and when you can also do it via combat damage, thats even better
A single Swords to Plowshares in the sideboard will do
It's also vital to consider the balance between card advantage and card selection
This means that granting a creature Hexproof, or killing the creature in another manner, like with Swords to Plowshares, will completely invalidate your card draw
Just look at this short list of what you can get back, from the top of my head: Zulaport Cutthroat Cruel Celebrant Corpse Knight Elas il-Kor, Sadistic Pilgrim Bartolom del Presidio Blood Artist Viscera Seer Carrion Feeder Marionette Apprentice Reassembling Skeleton Putrid Goblin Cathar Commando Cast Raise the Past, sacrifice your entire board in response, and get them all back none the worse for wear