u/Dear_Following_999

Why are more people not playing vein ripper?? I have been working on a mono black vein ripper deck that cheats it out using sorin imperious bloodlord. It has eldrazi temple to be able to play k-command, as in play testing vein ripper pairs well with k-command. It has played well against boros. It is extremely powerful when you can get a turn 2 sorin/vein ripper using phyrexian tower and a 1 mana creature. What would be some suggestions to look into for the deck or any reasons why it may not be played more often?? thanks for any help!