At instant speed, the drawback of having the searched card put on top of your library is somewhat mitigated as well, making it a viable option for both early and late-game play
And Cabal Coffers is at least a very strong card, potentially adding a ton of mana, especially in conjunction with Urborg, Tomb of Yawgmoth to make all of your lands into Swamps
Unless specified, the person playing a Continuous spell cannot remove it whenever they choose
From the cool, purple coloring to counter the vibrant gold, to Hades status as a dastardly villain, the only thing that these two cards seem to have in common besides their 3/4 strength/will power numbers is the fact that both cards oddly enough have something to do with making a deal
Even outside a pure tribal build, a seven-mana threat that refills your hand every turn is hard for an opponent to race, and the +2/+2 anthem effect can turn a swarm of small Villains into a genuinely threatening attack step