The Geosphere (also called the Earth Orb) is a special item that appears in Fire Emblem: Ankoku Ryū to Hikari no Tsurugi and Fire Emblem: Mystery of the Emblem. It was one of five orbs possessed by the Divine Dragon clan and used to complete the Shield of Seals. In Ankoku Ryū to Hikari no Tsurugi, it did moderate damage to all foes on the map, it could have been used 3 times before breaking. In Mystery of the Emblem, you can get the broken Geosphere from a thief in Chapter 15, it allows you to steal money from an enemy sometimes when the holder attacks an enemy. Also, it grants you 10% extra hit and dodge rates to people next to the holder of the broken Geosphere.

In Shadow Dragon, the Geosphere was weakened slightly, as it now does 13 damage to all characters on the map, including your own. This item doesn't work in Shadow Dragon's WiFi battles.