In both games, the Guardian Spirit is represented as wild cherry blossom petals. It's the case for Kalas and Xelha's Guardian Spirit in Eternal Wings and the Lost Ocean, and Baelheit's Guardian Spirit in Origins.
Aside from the player characters, Baelheit was shown to have a Guardian Spirit late in the game called Daimon. Quaesor Verus also claimed to have a Guardian Spirit, although it was later revealed that he had been faking it all along, or at best, that said Guardian Spirit was in fact Wiseman. In the case of Sagi, he didn't have a true Guardian Spirit as it was actually an essence of Malpercio due to his status as part of the Malideiter project.
Interactions and ConsequencesEdit
In both Eternal Wings and the Lost Ocean and Origins, Kalas/Sagi occasionally addresses the spirit by turning toward the screen and asking him/her to make certain decisions. These decisions affect the relationship and connection that the characters have with the spirit. In battle this manifests by what magnus come up in battle.
For example: in Eternal Wings and the Lost Ocean, you will have a better chance of getting a powerful spirit attack. In Origins, you will have a better chance of getting a needed card such as health if you're low HP, or an attack/special attack/magic magnus.