I'd say no, myself. Flickering just means that the fire sputters briefly. Like if a light breeze passed through and the fire on your torch loses some of its strength and then returns to normal (But in this case there is no breeze, only the reducing of the fire's strength and then returning to normal). You aren't able to actually extend the reach of the flame in any way, so the only way I could see to damage someone with this is if the fire were already within three inches of their face, which would probably hurt anyway because fire is hot, and the flickering caused some ash to get into their eyes.

Bilbo Baggins! Do not take me for a conjurer of cheap tricks!

This has a verbal component. . . Do you think that a mute Tiefling could cast it with a whistle?

Quote from ChaoticGood13 >>

This has a verbal component. . . Do you think that a mute Tiefling could cast it with a whistle?

 Verbal components are arcane incantations, so no, you need to be able to speak

I like how Badlurs Gate 3 handles Thaumaturgy by giving you advantage on intimidation/persuasion checks while using it.

depents on the situacion, but yes, you can get advantage

I feel like this should definitely be a bard spell just because of how dramatic it is. Like actors, especially ones in a fantasy setting without things like microphones and special effects, could really use the louder voice and the control aspects of this cantrip. Idk it just feels like bards, especially glamour bards, could really utilise this spell.

Well, it's spell/cantrip so if you beg your Game Master you could learn it as a Bard by spending some XP points and particular ammount of GP.

But the most annoying thing is that it has Verbal component...  In case of Clerics, it's understandable, they life is overfilled with canticles, cantrips and orations. But for Thieflings... Those things should be arranged as more emotion triggered. Or by cursing... Or just allow characters to cast it by cursing...

<Rouge looked at the Merchant. Agression visibly rising in his eyes.

"Are you f*#in insane!!??"

SLAM! Front doors of the shop opened in sudden and hitted the wall, destroying their rusty hinges. >

Or something like this.

Not unless there is some sort of other circumstance in play. For example, if a person was already super nervous, you'd probably have advantage cuz he'd be easy to scare.

Can it be used to change skin color?

It also says verbal component, could it be whispered?

Well no, why would it?

Maybe you are thinking of Prestidigitation. That spell is somewhat unclear about beeing able to change skin colour and they did so in Critical Role, however it really is up to your DM.

Great villain cantrip, makes them super scary. 

New Player here. I think I know the answer to this but, if I have a lvl 1 Tiefling Sorcerer, does Thaumaturgy count as one of my 4 known cantrips? Like, is it a bonus because of my race (4+1)? Or does it count as number 1 and now I have three more to choose?

Thamaturgy is a bonus cantrip given by your race. It won't count against your known Sorcerer cantrips 

Thanks! That's what I thought.

There are two tieflings in my party (one being me) and it's just become a thing where whenever there's a large amount of enemies approaching and we need a little bit more time we both just:
GROUND GO GRUMBLY!! *cue a hundred thaumaturgy earthquakes*

• You alter the appearance of your eyes for 1 minute.

Does this mean you can make your eyes look like daggers or flames or biscuits or anything? Or are they inferring just changing the color?

One of my players uses this and other spells like it to 'scare' enemies. if the monster rolls a wisdom saving throw and gets under 4 they fall prone for two turns. under ten they had a disadvantage and under 15 they back away a few steps. I think it's a good system but I wanted to see what other people thought.

Quote from MysticalMannate >>

One of my players uses this and other spells like it to 'scare' enemies. if the monster rolls a wisdom saving throw and gets under 4 they fall prone for two turns. under ten they had a disadvantage and under 15 they back away a few steps. I think it's a good system but I wanted to see what other people thought.

I wouldn't allow it in combat personally as that seems like it could be a touch too strong, but for menacing criminals/shopkeepers and other situations where you're in a controlled position it'd probably be okay as a rule of thumb.

That said I think for the social case that's one where you don't necessarily need a rule for it; if a player wants to use thaumaturgy to make themselves more intimidating, and can give a good description of how they're doing it (or better yet, is assisted by allies also being menacing) then just grant them a bonus to the roll (or advantage), and depending how they do just have the target react in a way that feels right at the time as with any intimidation attempt.