It's threads like this that makes me wish all anime characters gave their attacks and combos names.
Lets see:
Final Stage(Big O, because it came out of nowhere)
Dragon of the Darkness Flame
The Sinning Tree(Cold blooded)
The World
The Judgement Chain
Zero's Twin Buster Rifle(Endless waltz, it's snowing,white reflection playing in the background,and Mariemaia just realized she's about to get her seven year old ass beat, it was so tense and badass I got goosepimples)
The Sun Bomb(Tetsujin 28 doesn't have a lot of fighting, instead it's about the horrors of war, a tale it does better than any anime I've seen since.Still, the show is about giant humanoid weapons, I was eager for some action. The Sun Bomb delivered, and its so pretty)
Kenpachi's Bankai(I doubt anyone really needs to see it to know how awesome it's going to be, if only because its Kenpachi)
I never get tired of posting this video
Naruto 4 tails Transformation