So, I was thinking of, perhaps, there being a few additional techniques based around the difference in skills between different dragon types. Not sure if there are actual Dragons (aside from Kyuubi) on this site, but.... here we go....
Name: Ryoukyou no Shouryu - Curing Call of the Green Dragon
Canon/Custom: Custom
Rank: C
Element: Water
Type: Iryojutsu
Range: 0-10 ft
Description: Requires charging. After charging Suiton chakra into their vocal cords they use their voice to shout the power of a cleansing energy through their target, sending water through their chakra and blood circulator systems in order to cleanse away poisons or harmful jutsu restricting the targets strength or endangering their life. Three post cooldown.
Name: Hyakukyou no Kouryu - Thundering Call of the Yellow Dragon
Canon/Custom: Custom
Rank: B
Element: Lightning
Type: Ninjutsu
Distance/Range: 0-20 ft
Width/Range: 4-16 ft
Description: Requires charging. After charging Raiton chakra into their vocal cords they shout at their target, releasing the chakra from the mouth in the form of several lightning bolts that spread out towards multiple targets in a widening range in front of the user. As with normal lightning, they are attracted to metal, and it is possible to deter the focus by discarding weapons as you leap away, but if not, it will continue to widen in effect till it reaches its maximum range. Six post cooldown.
Name: Teikyou no Katsuryu - Halting Call of the Brown Dragon
Canon/Custom: Custom
Rank: C
Element: Earth
Type: Ninjutsu
Range: 0-15 ft
Description: Requires charging. After charging Doton chakra into their vocal cords they use their voice to shout at the ground itself, causing rifts to split the ground and cause spikes to rise from the ground, barring the enemies retreat, path of assault, or whatever else they plan to do with the area around them. These spikes are also sharp, so if someone is caught in these spikes, it is possible they could be skewered, despite the defensive intent behind the technique. Four post cooldown.
Those are my ideas for now, I'm sure more will come to me in time.