Even if you reduce the search down to 3 different Zombies and have them revealed when your opponent picks which one you get to keep in hand - the effect is just too strong, when you consider Zombies love to dwell the GY
Then, this will have the upside of allowing you to sweep the board of everything apart from the Specter, which is an absurdly powerful effect On its own this is effectively a one mana 1/1 but getting rid of that Curse isnt that hard
The Gardens of the Badlands oh hi, whats going on in here
Now I know EXACTLY what you're thinking right now: "Oloro
I, for example, took the opportunity to design some cards that played into the theme in new ways
That permanent gains haste, "When this permanent leaves the battlefield, it deals damage equal to its mana value to each creature," and "At the beginning of your end step, sacrifice this permanent." If a permanent has in its mana cost, X is 0 for the purpose of determining its mana value