1] Not enough info (as stated above)
2] If you make a proposal of this sort, you need to include stats, buffs, ninjutsu, etc.
Plain and simple, not enough information.
Although, I would kind of like to see these implemented as specialties instead.
If you think about it, any Shinobi can merge chakra affinities (yes it takes practice) we would just make them difficult to get (certain DK?)
Storm would be fun.
If you want to talk technicalities, the SST was made up out of thin air based on something in the Naruto Series.
But if we think about that, the SST and a KG are two completely separate things.
I am against creating Jutsu out of thin air. [Unless for RP(-ing) in the fighting zones.]