Simple enough eh?
Just post what you consider to be the biggest troll moments regarding a fight in anime, manga or any other media like that.
Gonna kick it off by saying, Yasur Shichika vs Sabi Hakuhei from Katanagatari. Seriously, episode three ends with a preview of episode four. We get to know that Shichika will fight a man who has earned himself the title "Japan's Strongest" and is most likely one of the strongest characters in the series as well as one of the most badass ones even though he had minimal scree time so far. In the preview we see him split the sea in half to fight with Shichika there. Cut apart a good part of the island, CUT A SHARK IN HALF BY LOOKING AT IT and some other crazy stuff.
The comes episode four..... the fight happens completely off screen and at the end Shichika and Togame literally tease you about it just repeating how awesome it was.
I mean come on.