Quick question about Colossals rules

[Tyrendian]

Hey guys, just a quick question:
Do the Colossals/Gargantuans come with all the necessary rules when you buy them? I know they come with their card - but then Gargossals in general have their own set of rules, which I don't imagine would fit onto the two small cards... So is there perhaps a small sheet or something with those rules on it or would one have to buy the corresponding book?

Cheers,
Tyrendian

[Panzar]

Their cards come with their stats, weapons and explanation concerning the different power attacks they can do however the bulk of their basic and most important rules are in the colossals book.