Darg Baza (Japanese: 業魔火, Kanji translation: Act Demon Fire, Romaji: darugu bāza)[1] is a defensive spell that only appears in the Slayers RPG for Super Famicom. The game manual classifies it as "defense magic", a category that only exists in this title. As only Amelia Wil Tesla Saillune and Sylphiel Nels Lahda can use it, this was perhaps intended to mean it's a white magic spell.
The spell reduces the speed of the enemies, targeting all of them.