Chimasta is the goddess worshipped in the tiefling lands. Many years ago the city of Methbar was threatened by a colossal demon from the dark realms. In order to save the city the king prayed to the goddess Chimasta to save the city. She was the goddess of death and time in the human pantheon. She agreed to save the city but only on the condition she could infuse the humans of the island with her infernal nature. The city was saved but the people of the island grew horns and their skins changed into many bright colours - they transformed into tieflings - humans with the ancient dark magic of the goddess cursing their nature. The tieflings themselves see the change as a blessing and still worship the goddess to this day.