Replaces the global decks variable with a reference

No null checks, I am not sure if it is necessary. It works as intended otherwise

PROBLEM: Admin spawning a hand or single card object seems to screw functionality, since they both have a deck value of null. Might be a problem in the future, but might just need a is not null check.

But yeah bluh bluh disclaimer if the code breaks horridly and its my fault but please dont get mad.
Though ill be willing to fix it if you find any bugs with it.