Enchant Creature, 5G (6) For each other Cardboard Carapace card you have with you, enchanted creature gets +1/+1. Errata: This does not count any Cardboard Carapace cards in play that you control or in your graveyard, hand, or library.
Illus. Douglas Shuler
Does not count cards which were removed from the game, are in ante, are phased out, or are in limbo. Only counts ones which were never in this game. [QAS 1998/09/09] Sideboard is also in the game. [D'Angelo 1998/09/21]
You only have to have possession of the cards. You don't actually have to own them (in the property sense). [QAS 1998/09/09]
You do have to show the cards to your opponent and let them count them. [TomHa 1998/09/15]
Optional Rule: If Cardboard Carapace is enchanting a Blue creature, it gets all wet and soggy, and provides no bonuses. [Barclay 1998/08/13]
All tournament formats have banned cards from Unglued.