Barrier Field
Permanent If your Leader Card is a green "King Cold : Br" card, you can place any number of mono-green Extra Cards with the Field skill in your Battle Area, and your mono-green Extra Cards with an original energy cost 2 and the Field skill to be placed in their owners' Drop Area.
Permanent You can't activate Extra Cards with the Field skill that are copies of Extra Cards with the Field skill in your Battle Area.