Magic Ruler (MRL), later renamed Spell Ruler (SRL) to go along with the renaming of Magic Cards to Spell Cards, is the third English booster pack in the Yu-Gi-Oh! Trading Card Game. This was the first appearance of Ritual Spell Cards, Ritual Monsters, and Quick-Play Spell Cards. This Booster Pack has an overall "Magic" theme, as well as serving as the introduction of the "Toon monster" Series, which are monsters that require the Spell Card "Toon World." Highly sought after cards include "Delinquent Duo," "Snatch Steal," and "Painful Choice."