[Kobal2]

If the game isn't using CBM, then you won't be able to rely on your golems and statues much. The reason is, a large portion of your Earth income is going to go into Dwarven Hammers if you want to keep up with the other players in the long run. Sucks, but there ya go.
Focus on D and Umbrals instead, they're underpriced in vanilla.

If I were you, I'd start blood hunting with scouts early, then make Blood Stones by the cartload. These'll both let your mages cast more betterer battlefield support (and make your logistics easier), and give you an E surplus so that you can at least summon some Marble Oracles, who really are nice.

Endeavour to get Umbrals quick, they're really good and underpriced in vanilla.

Your go-to spell in early battles is not Magma Bolts or Blade Wind or anything like that: it's Earth Meld. Your Oracles are sturdy enough to be positioned near the frontline, so the range shouldn't matter too much. Stuck soldiers have zero defence, which lets your giants hit them. And what those lack in Attack they more than make up in sheer ooomph when they do connect. The good news is, it's on the way to Darkness, which is what your Pale and Ancient Ones (and Umbrals !) really, really want to fight under at all times.

You'll also want to plan how you're going to setup your Tartarian factory in the late game - whether you're going to go the Wish way (for the Chalice) or the Nature way (for Mother Oak => Gift of Health).
Nature is probably better IMO, since your sacred giants can take advantage of the regen from the bless, it's in Alteration (which is your top priority school) and it's a path your national mages lack, but it also depends on who else is in the game - if Pangea is in for example, they'll probably cast and lock it before you can. If I were you I'd still take at least N5D1 on an awake god - N5 for the Oak, D1 to summon Lamia Queens later, those'll make your inroads into Blood that much easier (as well as being able to wear the Jade Mask for one more tart summoner, too).