Pernicious Peanut - Newbie only 4 player game (Running)

[ErikM]

There was a battle in Ireme. Most of the province has been conquered blah blah.

Ctis losses:
0/10 commanders, 145/222 units, 20/20 undead.
Tien Chi losses:
7/26 commanders, 59/222 units, 5/6 magic beings.

So... I won and have now besieged the fortress, but at a fairly heavy cost in units. TC had to bring out a buttload of mages to counter me, and lost several of those. You can see their research suddenly slacking off on the score graph. Watching the battle, I seem to have won in large part thanks to my several Reborn and Sauromancers summoning up large armies of skeletons, leading to Tien Chi routing first.

Any tips on strategic lessons I should be learning here?