[From the description of Theomachia:]
When gods fight, the blood of simpletons flows freely. Teomachia lets you become one of the ancient gods and spend one hour playing the lord of a group of devoted followers. You have one goal and one goal only: Annihilate your foe's believers and thereby move yourself one step closer to absolute power.
Drafting prayer cards and power cards allows you to slowly build your might. Using those cards, you send your followers into battles, build temples, and inflict terrible curses on the unfaithful. You face a tough decision in every single hand: Should you put your own power on the line to help your believers win their battles, or should you turn your back on them, sending them to a certain death? If no god yields, hurricanes will face off with deathly plagues, tempests will extinguish walls of fire, and the ranks of the faithful will grow smaller every second.
Once you get rid of your opponent's last prophet, it's time to rest and listen to the cheerful song of your people. You have won the clash of gods. You have won Teomachia.