DX, or Deo Excelsior, is the God of Monotheism. He has no general buffs; instead his favors are generally single-use and repeatable.
Passive: No general passive to nonbelievers. Believe by praying to: "james4l", "Jesus", "God", "Allah", "DX", etc. etc.
Prayer Bonus: Gain 1 piety every turn.
Restrictions: Piety gain for other gods is halved.
Penalty: Triggered by going negative piety (well, really, impossible) OR by renouncing the god (praying to a different god). Set piety for ALL GODS to zero.
[REPEAT] Smite: (12 / 13 / 14 piety) Instantly do 420 + 20% / 1337 + 40% / 9001 + 60% points of damage on a target player. You do not get the loot bonus for killing a player if you kill them.
[REPEAT] Disown: (11 / 14 / 17 piety) Halve piety of praying god / Set piety of praying god to zero / Set piety of praying god to zero AND renounce god.
[REPEAT] Offering: (100*1.1^r / 80*1.08^r / 60*1.06^r points) Gain one piety.
[REPEAT] Wish: (12 / 10 / 8 piety) Gain a copy of one item in your inventory.
[REPEAT] Aegis: (7 / 10 / 13 piety) Gain 1 / 2 / 3 turns of aegis.
[REPEAT] God Binding: (15 / 24 / 33 piety) Gain +1 / +2 / +3 piety/turn, but reduce piety gain for other gods by 10%.
DX v2.0 (40 piety) Upgrade all repeatables by a level.
DX v3.0 (160 piety) Upgrade all repeatables by another level.