Keyword addition to Comprehensive Rulebook:
"Condition: X" is a static ability meaning "This card can't be played unless you control a card of type X. When you do not control a card of type X, sacrifice this card."
"Condition: X,Y" is a static ability meaning "Condition: X, Condition: Y." This can be extended to any number of conditions.
Keyword addition to Comprehensive Rulebook:
"Filter X" is a triggered ability meaning "When you play this card, search your library for X cards and remove them from the game, then shuffle your library."
Keyword addition to Comprehensive Rulebook:
Cascade is an activated ability that functions only while the card with cascade is on the stack. "Cascade [cost]" means "[Cost]: Put a copy of this spell on the stack. Play this ability only while this card is on the stack. You may choose new targets for the copy."
Keyword addition to Comprehensive Rulebook:
Pack X -- Y is a static ability meaning "If you control X or more creatures that share a creature type with this creature, then Y."
