<Snipped quote by Sionnie>
Do not worry, my doubts were irrational considering that I rolled two 20s.
At this stage, if you are using your bonus action to deliver a second strike which is using a Rapier and a Dagger, I need you to roll the following dies:
Rapier is 1d8, double that result and then add 3 to that score.
Dagger is 1d4-- as this is a second attack and you do not have 'Dual Wielding' feat, you do not get your damage mod.
Okay... I'm sorry.. but why the hell would she wield a rapier??? She is a freaking Rogue! Do you not get the concept of a rogue??? They don't use bows.. they sure as hell don't use rapiers... She has two daggers... her tail as a tiefling can also be used as a dagger... I think before you try to be a DM... You need to learn what classes use what weapons.. And what that class is actually capable of.. everything Sionnie has done is something she can legitimately do.. at level one... She has had her tail since she was born... You would think she could use it as a weapon.. yes? Yeah.. She could...