Sorry I haven't been on this thread in a while...
It seems my question was misunderstood. You have to list the names of all double techs that can be performed with Lucca, Ayla and Robo. For example, if the question was to list all double techs for Crono, Marle and Lucca, the correct answer would be:
Fire Whirl
Aura Whirl
Fire Sword
Ice Sword
Fire Sword 2
Ice Sword 2
Antipode
Antipode 2
Antipode 3
Granted, you're right that any three characters have a total of 9 double techs, but you have to list their names.
~MJE~
