Board Thread:General Discussion/@comment-1875854-20150221232630/@comment-4080775-20150222191638

Here' what I thought of: Dark Release: Yin + Yang + Fire Reason: It can replicate the spiritual and physical energies that govern chakra natures, all from nothing. Fire is known to consume all if hot enough, which Dark release does, it consumes attacks before replicating them, sometimes on the genetic level.

Swift Release: Lightning + Wind Reason: Lightning is a fast nature, as shown by Lightning Release Armor. Wind is a fast nature as well, as shown with the Vacuum Bullets technique. People seem to think that Swift Release is useless, well, all chakra natures can have a ton of uses if used correctly. I personally like the use of Swift Release to speed up the reactions of other elements, such as the burning of fire, and the viscosity of water. Such its practically taijutsu resistance, but with so many damn Sharingan Weilders around, and the assumption that the sharingan can track all movement regardless of speed when the mind itself has limit to default thinking speed, I say its a great counter and an excellent nature, especially given the properties of the next element.

Steel Release: Lightning + Fire + Earth Reason: Earth signifies Hardness, Fire signifies metal being tempered, and Lighting works to make its atomic bond stronger at the moment uses (Think of the Fundamental Forces, Or at least how I see it). Its durability is so high that its said to be indestructible (Unless you blast it with a powerful lighting attack or dust release. Its a great nature, as Six himself has shown.

Crystal Release: Earth + Wind + Yang Reason: Crystals form deep within ground (Earth) under extraordinary heat and pressure (Wind) and they actually grow to larger sizes (Yang: Life - Makes it grow) under these conditions. Thats probably why it can be formed on any surface, as life can be found any and everywhere.

That's my input, but i seriously see no need to get rid of any natures. Hell, I can make swift release look good.