yugioh yu gi oh arc v synchron extreme structure deck Yu-Gi-Oh! | 60 Cards until the end of the Battle Phase. Torayca (Yu-Gi-Oh!) Yu-Gi-Oh : Ark

Its impossible to train in the games and boarderline useless

First and foremost, backless Blastoise has pointed corners rather than the traditional rounded corners of the Pokemon TCG

Scroll of IsildurScroll of Isildur (21,544 Inclusions, 1% of 2,433,318 Decks) As much as I loathe The Ring Tempts You mechanic and the precedent it set for cards no longer explaining what cards do, I have to admit that Scroll of IsildurScroll of Isildur is probably pretty darn good in a Sensational Spider-ManSensational Spider-Man deck

Since the only other Machine-Type Field Spells are Revolving Switchyard and Union Hangar (which are not very generic at all), I concocted a card that would be exceptionally useful to a plethora of Machine-Type archetypes and decks