We talked about Thor's uses as an assist earlier. He has 3 assists with varying use to different teams. They are the Mighty Spark Projectile, the anti-air Mighty Strike and the combo-continuing Mighty Smash. Like most, I use the Mighty Smash for a couple of reasons. It helps my other characters lead into their super easier, of course. It also is one of the best crossover counters in the game. When blocking, if you press forward and Thor's assist button, Thor will come in with invincibility and punish whatever move was used with no lag. This makes it one of the safest tag-ins in the game. His projectile isn't great for starting approaches so mighty smash is my personal favorite.
Doesn't that just look amazing? Who wouldn't wanna have this guy on their team?
(Sorry about the short post. Stayed out pretty late last night and wanna get some sleep)