[quote=@Turboshitter]
Hmmmm... I thought Invisible Air was a Noble Phantasm's of Saber's, not a function of the Grail. Wasn't it made by Merlin? I mean, if the Grail went out of its way to protect every incredibly obvious and identifiable NP, then Gae Bolg would've been invisible too, which I'm pretty sure would've legit made Lancer the most broken Servant in that war.
[/quote]

Let me do some research, cause I might have got this wrong. But I don't remember anywhere where they mentioned that Merlin made it. If that's so, I'll just have to do a switcheroo on my CS and make the shield a Noble Phantasm too. Plus I need to change my post if I'm wrong. Give me a moment.