@JeremyECrawford If someone wanted to have Tiamat as a warlock patron which one would she fall under
— Mertrablaze (@mertrablaze) January 28, 2020
If your D&D warlock would like to make a pact with Tiamat, I recommend choosing the Fiend option. Tiamat dwells in the Nine Hells, and she's classified as a fiend in "Tyranny of Dragons." #DnD https://t.co/UGnKPwkEHY
— Jeremy Crawford (@JeremyECrawford) January 28, 2020