Im not sure where Hive of the Eye Tyrant fits in either, but Im sure it could see play in some of the Black sacrifice decks with Shambling Ghast and Deadly Dispute
You can cast these spells even if you don't spend any snow mana to cast them
2 Add: Guardian Project Cut: Staff Of Compleation Kind of a more generic upgrade to include, but one that guarantees sustained card draw turn after turn is the Guardian Project
There is a reason why this is a staple in every EDH deck out there
Not only do they survive, but with a Hardened Scales or Conclave Mentor on the board, each combat step increases their value exponentially since transferring them onto a creature adds an extra two or three depending on how many of these cards you have out
Ship quickly and pack well, since fast, undamaged deliveries are what turn into glowing feedback