Memory Gem

Memory Gems are the plug-in augmentation system used in Echoes of Mana. Presenting as collectible cards, these crystalized memories of the events and figures of the greater Mana series give individual party members enhanced attributes and special abilities beyond those they innately possess.

Function
Whether they are assembled from story progress or harvested, Memory Gems insert into units' gem frames to pad their stats and get special aegis skills from each. They come in rarities from 2 stars all the way up to four stars. Each comes with a spirit magic level equal to their rank, with a maximum level being their rank + 1. To get to the maximum rank, the player needs to unleash them; four of the same type of card are needed to unleash the remaining spirit magic level and max the attached aegis effect. However, unleashing with even a single Memory Gem still raises the card's maximum level.

Each card also carries basic stat values that are added to the stats the unit currently has; these receive upgrades by every 10 levels of the card, but remain static between level multiples of 10.