Cringelord
I got bored over quarantine and wrote a discord bot to bully my friends, it quickly evolved into a fully D&D-ready bot that is now actually useful. If you want him in your own server, I am sorry but due to his unstable nature and ability to nuke an entire server with a snap of his gauntlet-less fingers, he is not yet available to the public.

Commands:
!roll <number> <dice> [modifier]
Rolls the specified <number> of <dice> sided dice. Has an optional [modifier] to add or subtract from the roll
Aliases: !r !rollmany
!adv <dice> [mod]
Rolls the specified <dice> at advantage. Has an optional [modifier] to add or subtract from the roll.
Aliases: !rolladv !a !advantage
!dis <dice> [mod]
Rolls the specified <dice> at disadvantage. Has an optional [modifier] to add or subtract from the roll.
Aliases: !rolldis !d !disadvantage
!d20 [modifier]
Rolls 1d20 with an optional [modifier] to add or subtract from the roll.