Friend

A Friend is someone you train with in the game. To add a friend, select the name of anyone who appears in the chat. You can only add or accept up to 150 friends. When practicing with a friend, simply select VS and a practice battle will begin. You can receive EXP, Friendly Points and Silver when fighting 6 of your Friends daily.

Workshop
For each Friend you get +300 Silver Bonus from the Workshop Levy. You can only recieve up to +3000 Silver Bonus from friends.

Quest
A Daily Quest requires practicing with 5 friends.