And Earth, Wind & Fire can't hold a candle to "The Rain King"...
Thor was the son of Jord (The Earth Goddess). Freud would classify that as weak against Earth.
And the Thunderbird was weak against the Mustang, the RoadRunner, and the GTO
Cyclop(e)'s, who forged lightning bolts for Zeus, were imprisoned in the earth...
Tao would suggest that all the elements exist in harmony, none overpowering the others.
The point is, set them up however you like. Half the fun in playing the game is discovering
which things (spells, items, weapons, etc..) work the best against which foes.
Be Well