Let's say I have two Transformers that can combine with each other to make a 'super transformer'. Let's say Transformer A and Transformer B. When Transformer A combines with Transformer B, they form 'Super Transformer Light'. When Transformer B combines with Transformer A, they form 'Super Transformer Dark'. It depends on who initiates the process to combine. When they decombine, the transformers turn back to normal Transformer A and Transformer B. Is there a word that would best replace Transformer A and Transformer B to make it sound more generic without using the A and B? Using a bad example I can think of for the kinds of sentences I want to create and not sound cheesy or wordy about what happens: - When the initiating robot combines with the robot that is to be combined with, the initiating robot dictates the transformation into 'Super Transformer Light'. - The robot that was the one that did not initiate the combination does not dictate the transformation. - The robot that had initiated is the one who dictates what the resulting super combination is. - The combined robot, when they decombine. The robot that had initiated gets a bonus for initating. - The combined robot, when they decombine, the robot that was the one who got combined by the initiating robot goes back to being the normal robot it was. I don't like the "initiating robot"/"robot that had initiated" and "the robot that is to be combined with"/"The robot that was the one that did not initiate the combination". Is there a better word or description I can use to sound less complicated?