I want a team of one Pokemon from every generation.

I'm already decided on:
Gen 1: Kangaskhan - Mega
Gen 6: Protean Greninja

but wtf should I use from the other generations?

Note: I don't need this to be an amazing OU team, just one I can stomp out my buddies here at my college and random people in my dorm building who show up as passerbys.