When you use a power, you will usually have to send a list of at least three people to use it on. If the first on the list dies or something before the power can be used, then the power will be used on the next person on the list.
All werewolves have the power to eat people, meaning that power rules apply. However, only one wolf will get to kill someone on any given night. If the wolves do not agree, then it will be randomly chosen. For example, if werewolf A says to lynch droideka and werewolf B chooses to lynch Henry Link, then I will basically flip a coin to decide which one gets killed.