What mods/clients are we allowed to use on Dominion servers?
What are the roles on the server and what do the prefixes mean?

Survival Server: play.dominionserver.net
Creative Server: Use the command /creative while connected to the Survival server.
Event Server: event.dominionserver.net (Only open when an event is in progress)
Seasonal Server: seasonal.dominionserver.net (Currently between seasons)

Dominion also uses datapacks to modify some mob drop and chest loot tables. Our philosophy when introducing a change to drops is to rectify a deficiency in supply of an item that would normally be relatively plentiful in a single player world. Due to our fixed world border, certain items can become artificially rare or outright unobtainable if left unchanged.
Below is a complete list of all changes, including their exact drop chances and any additional criteria that must be met (such as requiring a player kill). Unless stated otherwise, all chances are affected by the looting enchantment: