Wayward Compass

Notch 1 (during your upkeep or when this artifact enters the battlefield you may attach this artifact
to target creature you control if the combined converted mana cost of the creature and all auras attached to it is greater than or equal to the notch number.)
Equipped creature has "{t}: search your library
for a basic land card, reveal it, shuffle your library,
then put the revealed card on top of your library."