I don't know how high the number of hand seals can get, but to me 6 isn't high. Only jutsus with a high amount of hand seals should be shortened when you gain a level of strength or power.
The simply solution to shortening hand seals as you level jutsus up would be to decrease the time completion in-between them. .5 seconds to .25 to .1, .5 is still fast so it's not like you would be forced to check to see if it's done because let's be honest, it will be before your eyes even check.
I like the idea of adding a number at the end of the jutsu chain so it knows which one to cast, that's a great solution.
Again, I don't fully know the controls, so this is an assumption that you can use W,A,S,D or the Arrows on the keyboard to move. . If you use WASD or the arrows, moving and doing a jutsu while looking around on the camera to face your target? that seems extremely difficult and kinda impossible. SOOOO, if you guys add the RMB +LMB like Blizzard did with WoW, allowing you to both move and look around, it would be a great solution to being able to move and do a jutsu.
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