If you want something new to run, you can always try your hand with either Vren, the Relentless, Xanathar, Guild Kingpin, and Etrata, Deadly Fugitive at the helm of your deck
I was always of the opinion that the best Jund draws involved turn two Tarmogoyf into turn three Liliana, and Zoo accomplishes a similar goal with better cards
Ive even seen it as a 99999/3 creature attacking
When this 2/1 for one is in your graveyard you can cast it if you control a Zombie
While you certainly dont need a specialized deck to want to include this spell, its one of many excellent cards that Ive seen do wonders alongside the very cool Blanka, Ferocious Fiend (or his Universes Within counterpart)
The WotC Dragon's Maze Mechanics page isn't clear about this