User blog comment:Skeith9/Heroic Spirits Speculation/@comment-25119196-20140629111230/@comment-24762556-20140629134248

I don't think Gandiva should rely on luck to dodge, because Arjuna just DO NOT MISS EVER. It should be armor-piercing arrows that can have its damaging power lessen the greater the enemy's MGI stat is. This would mean it would be considerably weak against enemies that have MGI rank A and above but since it never misses ever and Arjuna can fire over 1000 arrows in a minute, its a fairer game even though its still is very broken.

Brahmastra Jishnu's effect seem too undefined.

Pashupatastra cannot be used against anyone weaker than Arjuna, so given that he's basically a top tier Servant to begin with, there won't be many enemies he can use it on anyway.