To be noted that it doesn't have any downsides if your hand is empty, but you'd need a very specific build to make that work consistently, and it would rarely be a turn 1 discard. Between Duress, Thoughseize and Inquisition, I really don't see why this would make the cut.
@serracollector With this and Jace's Phantasm, we can make agro-mill!
Seems very situational. If you're on the play, it won't come down on T1. On the draw, you need to hope opponent has T1 Shaman or Rootwalla. Even if they do, it trades with Rootawalla or Vengevine and seems unlikely to connect.
Not sure against what other deck you'd bring that in, but against Survival it seems heh.
I'm a bit confused by the Garruk comment. These cards don't seem to have much in common , nor do I remember Garruk being played in Vintage at all.
Aww, we'll that's silly.
Fine, Forbidden Orchard, Donate and... some way to force them to tap for mana!
If Myco Lattice is in play, you can any nonland card off the top, in case someone wants to try this in a colored Shop list.
I see why this is not templated like Tarmogoyf, it would be a pain to keep track of the P/T at all times.