An option to use DiscordRewards instead of DiscordAuth would be nice as Auth does not have an option to reward the player when linking

Why would this plugin be using either of those? This is just a Core for other plugins to use.

There is an option in the config to use DiscordAuth though?

  "Use DiscordAuth": false,

Ah, somehow missed that in it.

DiscordRewards does not provide the necessary API's for DiscordCore to be able to use it as a link source.

And Birthdates is not active anymore :/