I think i would be a rogue at first... i don't do well in teamwork, but I would always do good... tbh i think i would be a bit vindicator. I sometimes tend to be a bit justice for the sake of justice ^^
Unless my team-members were people I knew and respected/liked, I would be highly untrustworthy and even if they were the nicest of people , I would find ways to work alone and even pick them off one by one unless they were really the best of people and proved to be effective to my own ends, as in manipulation.
Gradually , I would brainwash them to my point of view and alienate/wipe the others if they didn't. If they happened to have survived I'd go rogue the very second with my followers they find out about my underhandedness and steal the power source; thus wiping the X Sentai/Power Rangers out of the equation and making my own for me to lead in my way against the X villainy .
Let's just say that the inexperienced leader would either be helped into the team by me or taken out of the equation depending on how I care for the situation and my mood.
But seeing as that requires too much effort , I'd just go rogue and do my own thing.
Id rather be a Kamen Rider or separate ranger than a part of a team because teammates either extremely help or destroy the mission for justice , IE be like Batman.