[Endoperez]

Air:

Never cast: charge body, mist, wrathful skies, mists of deception, shimmering fields

phantasmal warrior
< false fetters, thunder ward, shock wave,
< Aim, Resist Lightning, Air shield, Mirror Image, shocking grasp, wind guide, ghost wolves, confusion, lightning bolt, flight
< Summon Storm Power, Mistform, orb lightning, arrow fend, thunder strike, mass flight, storm warriors, Fog Warriors

Summon lesser Air elemental
summon air elemental
summon valkyries
phantasmal army
living clouds
storm - I'd probably give this rather high rating, perhaps somewhere in the second-highest category. It may hurt you (archer nation), but it helps Air mages (storm power), so it's a tough choice.


Blood:

I don't know much about blood battle magic.

Death:

Death already does fine. Bane Fire and Drain Life should be rather high.

Earth:
never: Curse of Stones, Iron Bane, Rain of Stones, Earthquake

Flying shards, Earth Might, Iron Warriors
< Earth Grip, Fists of Iron, Earth Meld, Farstrike, Rust Mist, Armor of Achilles, Strength of Giants,
< Iron Will, Magma Bolts, Destruction, Shatter, Marble Warriors, Legions of Steel, Blade Wind
< Summon Earthpower, Magma Eruption, Gifts from Heaven, Army of Gold, Army of Lead, Petrify, Weapons of Shrapness

ones I'm not sure about:
Stoneskin, Ironskin, summon LEE, Invulnerability, summon EE, living Earth; the protection spells would probably go under "never cast these", and I have no idea about earth elementals.