Best Answer Cheyenne , 28 August 2015 - 23:43 PM
Cakes are used only by the last (strongest) 5 players in a fight. They improve the damage significantly.
Doubles are used as an extra. For example: your team has 15 players and there are only 12 players reported for the fight. These doubles replace your 3 missing players.
It is good to have both cakes and doubles, but they are not mandatory.
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