[Neus]

The number of mobs on the battlefield isn't a concern beyond the turn order display running off the screen (although I may have already accounted for that when I made it, I'm not sure.). In theory all battles use the same amount of CPU since there's only one person taking their turn at once; the only instance it might spike is when applying damage to lots of targets, but I don't think it'd be a large amount of difference.

Although it would be interesting to test that myself by having two parties of 25 Black Beasts fight it out against each other and see what if anything wrinkles. But that's a bit off topic. The main reason the limit was imposed is because without it summoners get a lot of free power every time new Youkai are added; an extra 2 free skills and a situational install, not to mention two warm bodies for their armies.

I don't know if changing Vorso in this way would make Summoners too overbearing or not but it's a definite maybe, plus I think it would make Vorso a relatively mandatory item for Summoners. I try to avoid that when possible.