• The card's name refers to the Litmus Test, a method used to test the pH of a chemical, by exposing a solution or piece of paper containing litmus dyes to the chemical in question. The colors shown in litmus dyes, in low and high pH levels, respectively, are red and blue, which appear in the background, and are the colors of Trap Cards and Ritual Monster Cards.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.