Building

A building is an element that is added to a player's inventory through a Build command. Unlike items, buildings usually cost energy in addition to coins.

In Many Marios 0
In Many Marios 0, all buildings have an income that contributes to a player's growth.

Many Marios 0 introduced the concept of building units, buildings that can be used as units in combat. Since buildings can't be equipped, neither can building units, but they can be affected by combat items.