"Hey , so we need a new original Saber Servant for this new game we're making, what can you do for us ? "
Hmm...how about a Black Haired Seiba Face with a Excalibur like NP. But this time, and boy...you're gonna love this...this time it's not yellow ...no sir this time, it's motherfucking blue.
Wow, we love it, get to work".
The funny part, from what I heard in Beast's Lair, it may not even actually be an NP from that but an overcharged Mana Burst similar to Strike Air as Jalter survived it practically unharmed.