Well...you talked me into reserving it...
Nah, they wouldn't work as a tag team. Warrior would be showboating all the time and Rider would try to outdo him then do the only sane thing - ragequit.
Halloween - well...we don't have any form of pagan/wicca history within Australia in significant form since we're a very young country compared to most of the world. So the roots of Halloween are beyond us. I think it's primarily a U.S. event. Already enough times of year kids get free sweets anyway....Not to mention street roaming is generally not the best thing to do these days either.