Board Thread:Naruto Discussions/@comment-38792431-20200226192508/@comment-732150-20200227102803

Jutsu rank denoting difficulty in learning and performing it was established in the first databook. That's why kekkei genkai jutsu don't have ranks, it's besides the point assigning a difficulty in learning them when they require having the kekkei genkai that makes them possible in the first place. People thinking that rank denotes power is one of the single most enduring misconceptions in this fandom. Here's another example of different ranked jutsu being matched in power: when Kakashi and Kakuzu fought, it took Kakashi using Lightning Cutter with both hands to cancel out Kakuzu's False Darkness. LC is S-rank, FD is B-rank. If rank was a measure of power, LC would simply have overpowered Kakuzu's jutsu and pretty much ended the fight by turning both jutsu against Kakuzu. Paraphrasing Zetsu's commentary of Sasuke vs Itachi, jutsu are tools, and an expert with a rock will defeat a novice with a shuriken.