[quote=@VKAllen]
<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 'Two-Weapon Fighting' feat, you do not get your damage mod.
[/quote]

(Dagger=4) Roll Type 1 d4
(Rapier=6) Roll Type 1 d8