So, for blockstrings including SoD, you can charge it at max range to scare them. They can back up and it will whiff if you charge it too much, but it's good to attempt to punish IB or pokes. Charge to lvl2 sometime, and if they're in range, you can charge to 3 if they get scared. This is really strong because you can react to their character twitching by releasing it, and you may even catch jump out startup, or a poke and we all know FCs are sexy.