Storm Release Secret Technique: Demon Dragon Storm

User uses the Storm Release to produce a massive thunder cloud capable of infinitely absorbing chakra to grow in size, strength and ferocity.
 The amount of chakra it receives will also increase. The Cloud takes 10 Chakra x2 per turn. The user can channel this absorbed energy into themself, amplifying the technique to its highest limit.
Ninjutsu (Elemental Type);
Level: 	S 9
Hand Seals: 	Rat -> Dragon -> Hare -> Tiger
Casting Time:	Full round action
Range: 	Long (400 ft)
Area: 	Shapable
Duration: 	Instintaneous
Saving Throw 	Reflex; Half