Hunter x Hunter (2011) Episode 90: Interest x And x Curse

info: MAL/wiki/AniDB

 "The final duel between Gon and Knuckle begins. Just as he promised, Knuckle does not hold back and uses his special technique on him, forcing Gon to look for a way to defeat him as fast as possible. Meanwhile, Killua confronts Shoot, but he also gets himself in a pinch when his old habit to avoid stronger enemies is triggered..."

 Well, Knuckle sure has one interesting technique that gives Gon a serious headache. I'm sure Killua cant lose to armless guy. HxH remains the most interesting long going anime. Download link or watch here.