[@vancexentan] so the Lancer's I was looking at are Romulus, who I'm going to go ahead and guess is going to be too powerful, and Benkei, who has an instant kill Noble Phantasm but not one that auto-hits.

My issue with the DnD system is that it seems to be based on the idea that all of the Masters are going to be using fairly standard magecraft, like Gandr or element manipulation, when most of the Magus we see don't use that. Rin uses magecraft stored in jewels, jewels that take time to make and are expensive; her magecraft is powerful but is already limited by the fact she had a limited supply she can't easily replenish. Kayneth has a giant metal blob he controls, Kiritsugu has Magus killing bullets, the Matou's control bugs and Waver doesn't fight ever. None of these really fit into the idea of having a set number of casts of each spell per day.