Pause
1000 Blank Cards, with set rules for play priority.
Cards are played by discarding cards and drawing them back. Players start with five cards. Any card may be played at any time, though players take turns holding priority in clockwise order. Stack is last in, first out. Cards go to discard unless they have persistent effects.
Cards that draw more cards are challenges. Cards that cost more cards affect other players in funny ways (and usually reward them).