It's crippling if you want anything Thaumaturgy can't do. Mind you, it's an extremely versatile Discipline that can achieve a lot of things that the standard Disciplines can't, but on the flip side, there's a lot of stuff that it just doesn't cover. Just counting your in-Clan Tremere Disciplines, Dominate can be invaluable in dealing with mortals even for the lowliest vampire, and Auspex can be a useful tool for anything investigative. Beyond the in-Clan stuff, you're also losing access to what you could be learning from others, meaning that at the end of the day you'll never be as strong, fast,...