Parameters are parts of the script that help describe effects. They are usually followed by a colon.
“Range is a parameter that describes the number of cards or variables affected by a command...Range
“Name is a parameter which describes if the card's name contains the characters. An equals sign...Name
“Negated is a parameter that describes whether a card's effect is negated or not. Acceptable forms:Negated
“Method is a parameters used to describe keywords of a game event. It is used with the CAUSE...Method