While there are other cards that can provide similar benefits, such as Rhystic Study or Consecrated Sphinx, which offer more control over card draw or can generate overwhelming advantage, Kami of the Crescent Moon can still see play in casual or themed decks where its spirit type and lore are relevant, but it may not be the optimal choice in competitive settings
A Parasitic Theme There are a lot of these for cheap, including two foils
Prices for the MTG Secret Lair Slimer drop are $29.99 for non-foil and $39.99 for foil
Use Kefka, Court Mage and Emet-Selch, Unsundered to get big finishers like Summon: Bahamut, Sphinx of the Final Word, Summon: Primal Odin, and Ovika, Enigma Goliath in the graveyard, and then use Zombify to cheat one of them into play for just four mana
Gideon Jura animated by his third ability has a Human subtype
Eventually of course all this madness had to be stopped, so when the Extended format was created they made sure to put this on the banned list