It scales extremely well in long multiplayer games and supports many popular archetypes
Artifact Artifact (CTRL to add secondary) Counters Fight Rigging Hideaway 5 (When this enchantment enters, look at the top five cards of your library, exile one face down, then put the rest on the bottom in a random order.) At the beginning of combat on your turn, put a +1/+1 counter on target creature you control
An easy place to start is adding some of the other additional land drop effects, which were a little too pricey for me to go deep on: Azusa, Lost but Seeking, Kodama of the East Tree, Dryad of the Ilysian Grove, and Exploration are all excellent and will help you make the most of your explore triggers
And a lot of folks live here
However, as long as another sweeper isnt printed in Guilds of Ravnica , I expect Cleansing Nova to see plenty of play