Use at your own risk - a Mephisto review
Mörk Borg Ikhon
The small-format supplement Ikhon for Mörk Borg presents magical incantations from the game world that can be assigned to four ancient, bizarre deities and offer powers at ten levels. When a player character wishes to use the Ikhon, he chooses one of the four sections or rolls a d4 and then determines the effect with a d8 (though willing human sacrifices or the sacrifice of a body part confer a bonus on the roll). While the low values have bizarre, but above all horrible and deadly consequences, they later deliver mixed effect or even real advantages, which are no less bizarre.
For example, in the worst case, a divine sheep herd tramples everything to a bloody pulp. If things go better, all the containers fill up with water or poison. For a full success, gigantic spider legs descend from the sky and deliver almost certainly destroy an opponent.
Ikhon reminds me of tarot cards, although they are played differently. Each effect features a typically darkly bizarre illustration, while the game effects are summarized briefly but drastically.
If you want to supplement your Mörk Borg game with an unpredictable and dangerous summoning system for your game (and presumably plunge your player's characters into brutal chaos), you will find the Ikhons a sufficiently weird variant. Mörk Borg players will almost certainly get their money's worth here.