<a href="https://roll20.net/compendium/dnd5e/Monk#content" rel="nofollow">https://roll20.net/compendium/dnd5e/Monk#content</a> In the monk's Martial Arts feature the second bullet point reads, * You can roll a d4 in place of the normal damage of your Unarmed Strike or monk weapon. Almost all other sources of the 5e SRD also include a line afterwards to the effect of " This die changes as you gain monk levels, as shown in the Martial Arts column of the monk table." If you don't include this line, effectively a level 20 monk can only deal 1d4+ability damage with their unarmed strikes, and the martial arts column on the table is effectively pointless/refers to nothing.