Purge (パージ Pāji) is a Light Magic tome in the Fire Emblem Series. The Purge tome essentially allows its wielder to warp conjured beams of light to a far-off enemy target, before prompting them to combust. In general, the high Weight of this tome has an overwhelming tendency to inhibit its wielder's Attack Speed, makes it absolutely necessary to guard him/her before casting the spell.
In Binding Blade, the game in which Purge is introduced to the series, the tome possesses low Weight, giving its wielder the opportunity to easily perform double attacks, as long as he/she is well-trained. The unfair advantages that this tome's wielder may possess are remedied with the onset of the subsequent GBA titles, where its Weight is significantly increased. However, it is still arguably the most useful of the siege tomes, thanks to its high accuracy.