Class Card

Class Cards are items created for the Ainsworth Holy Grail War in the place of Servants. There are two sets, the first appearing within Fuyuki and the second being in the hands of the Ainsworths.

Nature
Each of the seven cards correspond to one of the seven Servant Classes, utilizing the default class imagery to mark them. They draw out he power of Heroic Spirits, and the Mage's Association is unable to analyze them in any manner. The card have a portion of the Heroic Spirits power sealed inside them, and it can be said that they are the Heroic Spirits themselves.

They can manifest by gathering prana from the land. Those from the first set are shown to be deteriorating when manifested, deviating from their original appearance and shown no longer have any of their reasoning. Archer from the second set is able to partially manifest while keeping his form. The Heroic Spirits form around their Class Cards, utilizing them as their heart.

It is possible utilize the power of the cards with a Kaleidostick with the Install method. This temporarily materializes their Noble Phantasm until the Card is Uninstalled. Install utilizes the full power of the Heroic Spirit.

Role
The first set of Class Cards, along with Miyu, first appear within Fuyuki after part of the parallel world is switched with part of the main world, causing 180 meters of woods to vanish over the cavern.