Prototype Class Cards: Prototype class cards are limited to 1 of each exactly identical card in a deck. Note: this restriction of 1 per deck also prevents a Prototype class card from being placed in the reserve fleet at the start of a game. When stocking a Prototype class card in a deck, the card will consume 1/2 of a technology slot. Unused exception slots may be used as technology slots.
Conjectural Class Cards: Conjectural class cards are limited to 1 of each exactly identical card in a deck. Note: this restriction of 1 per deck also prevents a Conjectural class card from being placed in the reserve fleet at the start of a game. When stocking a Conjectural class card in a deck, the card will consume 1/2 of a technology slot. Unused exception slots may be used as technology slots.
Attrition Class Cards: During the Draw Cards Phase, as a card play, the top most Attrition class card in the Discard Pile may be moved to the hand. The number of card plays that may be used in this manner during a Draw Cards Phase may not exceed the number of card draws allowed during the phase. Each turn, 1 Attrition class card may be played without consuming a card play.