Another possibility is Emry, Lurker of the Loch, which can mill it and cast it for the Disturb cost from the graveyard
Dack brings a fair amount to the table
a creature (or any creature) is not the same as target creature. Bear in mind that, if your opponent has several creatures in play, theyre unlikely to sacrifice the creature with hexproof
Early ramp lets you curve into haymakers while others are still fixing
How to Find Rarity on Old MTG Cards (Pre-1998) Cards from Alpha, Beta, Unlimited, Arabian Nights, Antiquities, and most sets through early 1998 were printed before Wizards of the Coast introduced the rarity symbol system, so that a standard MTG rarity guide wont help
Crucible was good enough to build around and Excavator is good enough that you barely even have to bother building around it