MODUS has the ability to delete as many messages as you tell him to. (Within a 10,000 message limit that is). There is however a 6 months limit for how old the message can be. This is a limitation by discord. Not us.
You can do this by doing the following command:
This command will delete anything above it once run. Be sure you know exactly what you are doing. Messages that gets deleted will be gone forever!
>purge <number of messages>
>clear <number of messages>
Please do note that MODUS will leave a message saying it has deleted the messages with a small 2 second delay before deleting its own message.
MODUS will also display that it is "typing" when the command is being run.