Module (noun): an independently operable unit that is a part of the total structure.Modules as a concept have been around in VtES for quite some time now. It first came to appearance in the Toreador Antitribu Newsletter September 2000, where it was presented by Ethan Burrow (and Norman S. Brown). The Presence forum has a whole subsection dedicated to the module concept (although input has been very slow these days).
But what is a module actually? A module in VtES is a set of cards, typically 10 to 20 cards) which has designated purpose and where the individual cards have something in common and/or they supplement each other. The cards of a module are often similar or at least complement each other. Furthermore, and that was the original purpose of a module, a module can be shared in a variety of decks.(1)
An Auspex based block module (21 cards) would look like this and could certainly used both in a Tremere Wall deck or a Ventrue antitribu Grinder deck:
- 1x Bowl of Convergence
- 4x Eagle's Sight
- 4x Eyes of Argus
- 4x Enhanced Senses
- 4x On the Qui Vive
- 4x Telepathic Misdirection
A second example here is a ranged combat module with Taste of Vitae (for regaining blood).
But you have be careful when using modules in different decks. Just adding a couple of cards because the discipline(s) (or other requirements) fit, may seriously dilute your deck and derail the deck from its intended schwerpunkt.
Footnote: (1) One problem remains when actually exchanging cards between decks is how to identify them quickly. Here the only solution is to either keep meticulous deck list or sort the decks after playing them, so it's easier to take the cards out.