SPOILER: Click to show Duel Terminal Prismatic Secret Parallel Rare v3: This is an OCG (Japanese only) exclusive rarity, available from June 1, 2012 to February 26, 2013 in the sets: DTC1
Grading means a third-party company establishes a numerical value of the card based upon its condition
provides a Trading Card Game (TCG) and console games, based on "Yu-Gi-Oh!" created from the original manga, that has been enjoyed around the world
Some of the most useful ones are: Tamiyo's Safekeeping, Veil of Summer, Shardmage's Rescue, Surge of Salvation, and Snakeskin Veil
It does fall on the wayside against Creature-heavy decks, so many keep this in the Sideboard
Ill stress a bit that the number of spirits in this deck by itself is a bit low, so depending on Quint to make some or some other source will be key to getting this card to give more value