Looking over the rules, for the Highlander rule at Mint Condition, I started wondering, what does it apply to? Does it apply to figure/set? Figure/identity? Figure/name?
The Highlander rule applies to the secret Identity of the person behind the mask.
so you would only be allowed to play one batman at any given time, and if you did have matches Malone and I didn't kill you for it you would have to chose to play him or a batman. Matches Malone is one of Batmans first secret IDs.
You could play Rookie speed (Roy Harper) and the new Speedy (the chick)this would be legal.
you could not play KC Red Robin/ any nightwing or the I-cons started set Robin.
For examples:
1) Superman Red/Blue. Can they be played together? Or do they both count as Superman? Red/Blue were around at the same time. What about Iron Man who remotely controls multiple suits regularly?
Well that is a question that comics can answer, was there ever a time when both the RED & BLUE supermen existed at the same time. If they did and you can prove it, the answer is yes, they can be played together. Superman and the red or blue superman can not be played together because they are part of him and can not co-exist.
2) Captain Britain. There's a Captain Britain Brian Braddock and there's a Captain Britain Betsy Braddock. Completely different characters and sculpts. Same name. Same powers.
the name of a figure has nothing to do with anything. The two figures you mention above are 2 different characters and can be played on the same force. As for having the same powers, at a quick glance they have completely different power sets
Captain Britain (#207) has 6 clix Armor wars
Captain Britain (#082) has 8 clix Ultimates
Captain Britain (#083) has 9 clix Ultimates
Captain Britain (#084) has 10 clix Ultimates
3) Captain Marvel. One Marvel, One DC. I assume they can be used together, but making sure.
From the past answers you know that the answer to this is yes, but to add to this answer you could play 3 Captain Marvels. Include in that list the LE Captain Marvel (Mary Marvel figure) Captain Marvel (#215) Collateral Damage
Just curious (*ponders a team of all three Captain Marvels*)
A special note: you can play as many OMACs as you want or the REV verity but you can only play on LE OMAC he has and individual ID number that makes him unique among the OMACs
this goes for any generic figure that gets a name as an LE like Thugs, Cops, LexCorp security,...ECT. ect