Ulm beefed up ...

[CUnknown]

Ulm is supposed to be more susceptible to magic than other nations, taking Drain-3 makes them about even to everyone else.

Raising their magic resistance sounds like a good idea, although I disagree that Ulm needs much if any beefing. They're a perfectly legit nation, it's just that their strengths are in the early game, not the late game. In 1v1's or on very small maps, they're one of the best nations out there.