[@Divinity]
Logged off to take a nap at the worst possible time. The follow up question was: 

Disregarding the unannounced appearance of a secondary projectile, due to the loose and unclear wording in the initial post I can see how there could be multiple projectiles without the mention of any actual number of them. What exactly is the second projectile doing to Shin's weapon hand? Assuming this means the hand he was holding his weapon in, not his actual dominant hand.