Tokens exist on the Stratus Network in two forms, and can be obtained either in-game by purchasing them with droplets or as a prize while playing. Alternatively thew can be obtained via the shop by either buying them with rank or separetly.
SetNext tokens are the first type of tokens, they can be used to suggest maps that are in the repostory to play next (Note: They do not have to be in the rotations!). To use a SetNext token, you can type /poll next <mapname> in chat. A poll will appear, and if the majority of players online agree with your suggestion, your suggested map will play after the map currently in play is done.
Mutation tokens are the second type of tokens, they can be used to suggest mutations for the next map. To use a Mutation token you can type /poll mutation <mutation name> in chat. Like SetNext tokens, a poll will appear. If your suggestion gets accepted, the mutation will activate on the next map. For a list of mutations you can either look at our mutation page, or do /mt list in-game.