Newbie question: Best army buff paths/schools?

[MaxWilson]

People talk about high blesses becoming obsolete in mid-game, in part I think because battlefield spells provide similar bonuses on arbitrary (and cheaper) units. Right now I'm very pleased with how Strength of Giants (E3/Ench-3) and Legion of Steel (E3/Const-3) transform my weak little Helheim Hirdmen into lean, mean Abyssian-infantry-killing machines. E.g. the first time I met up with Abysian infantry this game, it was something like 24 F4E4W9S9-blessed Helhirdlings vs. 50 Abyssian battleaxe infantry in a Heat-2 province. I lost about 20 and killed about 20, which was scary since I'd cut through everything else like butter, so from then on I resolved to stay in Cold-2+ domains when fighting them. Now I send in one Svartalf with <Summon Earthpower, Legions of Steel, Strength of Giants> and 15 Hirdmen and easily defeat 30+ Abyssians. The big difference, of course, is that Abyssians have 16+ Protection and all my units do ~16 points of damage, so Strength of Giants effectively quintiples the damage I do against them.

I'm just wondering if I'm missing out on any other cool buff spells. I've tried Wind Guide and been generally unimpressed with the boost, especially since it costs air gems, but I've had some semi-nice results from mixing an S1 mage in with a crop of infantry or elephants scripted to cast Body Ethereal a couple of times.

-Max Wilson