I imagine anyone who wanted it would want Spell Pierce first (by a wide margin) and a lot of cubes don't even run that card (even though it's totally sweet).
Going for the Sylvan Library interaction... Paging Anotak, how do I use Library on Cockatrice?
Pack 15:
Lorescale Coatl
Bloodghast
Pack 16:
Wooded Foothills
Brainstorm
Sakura-Tribe Elder
Total:
It's also pretty good for forum games. Only takes 9 back and forths to do the whole draft, which is more efficient than anything else by a long margin.