Why are they their own unique creature type when so many other undead depictions have been put under the Zombie moniker
You may play lands and cast spells with mana value 4 or greater from the top of your library
The Color Red in Ice Age: Big Creatures and the Stolen Land to Cast Them The color Red had some huge creature additions in Ice Age, Balduvian hydra, Chaos Lord, Goblin Mutant an an Orgg wannabe and Marton Stromgald, but it also added some powerful spells such as Battle Frenzy, Pyroclasm, Jokulhaups, Conquer, Game of Chaos, Dwarven Armory and Incinerate
Desecrate Reality takes colorless removal up a notch, granting multiple targets and potentially even some reanimation for your seven mana
You can even get ahead of it by playing two lands a turn (which you may draw, given how many extra cards its drawing you, if you are doing it right)
whether its Trazyn the Infinite, Technomancer, or a vehicle like Necron Monolith, and swing in for lethal damage