Thanks for the help Aardshark.  The math seemed wrong, but I was unsure why.  Like you said though, my point remains the same.

There is about a 40% chance of getting a street wraith in your opening hand (See math below from someone smarter then me.).  That means in about half your games you only get to look at 6 of your cards in your opening hand.

This card keeps getting brought up for inclusion in fast combo. Because combo is very bomb based, it seems that each card is more important to knowing if the hand will do what it needs to in order to win.  In control, the hands are much more about the overall flow and one card is less important.  This may be too much of a generalization, but if anything, control needs to know the cards as much as combo does.

On to the pros.  Say you have 50 cards left in your deck.  The chances of drawing a given one of are 2% (1/50).  If you have 46 cards its 2.17% (1/46).  That’s a .17% chance increase.  

So, unless my math is wrong you’re getting to see 6 out of 7 cards in 40% of your games for only a .17 % increase in the chance of drawing a card.  

Wraith is amazing in decks like doomsday and is a complete bomb in ichorid, but only because the cycling does something to advance the strategy.  There is nothing I would like better then to see my opponent cycle wraith blindly on their first turn because I am already a step ahead of them with a hand I wanted.  

EDIT: Used the correct numbers for the math