Players can summon phantoms together. To do so, one of them has to use an Epic Summoning Book. Once the ritual starts, a magic circle will appear around the user with four additional positions. Any character can take part in the summoning, but confirmation will be required on the part of the player who initiated the summoning process.
After the preparations for the summoning are completed, the four helpers will receive phantom fragments, while the main participant (the one using the Epic Summoning Book) will enjoy increased chances of summoning a rarer, higher quality phantom.