cards like exploration mtg (retro)- Artist Proof Put charge counters equal to its power on this Spacecraft Other cards like Explore? :

Additionally, you can run other prison effects like Sphere of Safety and Ghostly Prison and cards that reward you for gaining life like Vito, Thorn of the Dusk Rose

The stats aren't worth the cost, but its enter-the-battlefield ability is a game ender: all creatures you control gain trample and +X/+X until end of turn, where X is the number of creatures you control

We also have several other cards that search your library for artifacts like Tribute Mage, Trinket Mage, and Spellseeker

You also get lots of value from creating 4/4s with cards like Elemental Bond and Garruk's Uprising hanging around

Of course, maybe that was because people were using it to fetch the uber-broken Tolarian Academy