The Chidori is Kakashi Hatake's first original technique. This technique channels a large amount of lightning chakra to the user's hand. The amount of chakra is so great that it becomes visible. The high concentration of electricity produces a sound reminiscent of many birds chirping, hence the name. Once the technique is completed, the user charges forward and thrusts the Chidori into the target. This produces heavy amounts of damage that is usually fatal. This technique is classified as an assassination technique because of the speed at which it is performed, despite the loud noise it produces.
The Lightning blade is an enhanced and concentrated form of the Chidori with the same effects and drawbacks. According to Might Guy, it gained its name after Kakashi split a bolt of lightning with it. Because the Chidori is already powerful on its own, the Lightning blade requires better chakra control, which is exemplified in its appearance. The Chidori appears as simply a mass of white electrical chakra in the user's hand, while the Lightning Cutter is more focused and blue.
well,Chidori means: Voice of a thousand birds,and lightning blade mmeans...lightning blade,lol.And one is stronger than the other (i forget wich one, probably lightning blade..).Lightning blade was passed down from his father,chidori can be taught easily,lightning blade,not so much
Lightning Blade is another form of the Chidori with the same effects and drawbacks, but more concentrated. Lightning Blade requires better chakra control than Chidori. Chidori appears as simply a mass of white electrical chakra in the user's hand and Lightning Blade is more focused and blue. Lightning Blade emits the sound of electricity, and Chidori emits the sound of birds chipping.
Lightning Blade is S rank technique and Chidori is A Rank Technique..