Wind/Water mage is my own character's specialty. He specializes in combative magic though only recreational versions (i.e mage duels), and is not a proper combatant in the field. However his spells are limited to basic wind control, basic water shielding, and wind strikes. He's not especially broken by any means any earth mage could probably stone wall him. Characters also have limits. Shirou can generate blades but only so many and he's weak as shit against anyone not named Gilgamesh without external help. Magus have limits. Shirou can't project unlimited blade works literally, and figuratively. Rin ran short on her magic supply after forwarding it to Shirou, and Saber as well as using herself. Kariya didn't have unlimited bugs either otherwise Tohsaka wouldn't have swept him so casually.

Magus have limited magic is the point I'm getting across. Letting anyone, and everyone have A rank magic just because is asinine in my own opinion. It is rare for mages to be like Rin. I am not highly creative so I'm borrowing the easiest to understand system I know of which is a per day/per hour/per week system depending on the spell. I myself believe that if I allow unbelievably strong mages/servants into this it will just devolve into 'who's cock is bigger' the rp. I am not fond of bringing in Guan Yu, Charles the Great, and Merlin all on he same team just to fight Karna, Gilgamesh, and King Hassan. Its bad for the rp, and its bad for my own sanity as a roleplay GM. I'm not going to change the system there has to be limits be it someone can design a broken character, or not is on their own ability. 

You're free to join this, or leave it depending on how you feel on the matter King I will hold no hard feelings over the matter but unless you, or someone else has a better way of handling a system revolving around the numbers, statistics, and various abilities revolving around magus, in an rp focused on servant on servant combat regardless, then I will be doing what I've been doing.