It's a one-mana white enchantment that allows you to search up three basic land cards on your upkeep if an opponent has more land than you
Luckily, the Commander decks are designed to avoid this
Unfortunately, Boros Mice just isnt really a popular deck at the moment, with the speedier Mono-Red version edging it out most of the time
They tend to go better in a more mid-game/tempo focused build with their higher lore
Even if you don't flip it, and even if it comes a little, it makes all your instants and sorceries cheaper to cast
It's also always online if someone has dropped a Yavimaya, Cradle of Growth and it's quite funny to bounce Ashaya, Soul of the Wild to the top of someone's library for free if they somehow only had a forest because Ashaya had made their nontoken creatures into forests