birch'song

Intro this is my warrior cat oc echo!(the picture is exactly how she looks bc i drew it) echo is an intelligent she-cat who used to be part of mountainclan (my clan i made up) but got banished after she tried to kill flame'eyes kits. she started her own group of rouges, and they steal kits from the clans and make them their warriors. she likes to play tricks on cats no matter who it is. she is planning to attack the clans after she gets enough cats to rule all the clans. she captures cats, not a part of her group, and make them fight to the death (shell normally make friends fight). she's mean to all cats except for her own and would do anything for her group.her old name from when she used to be in the clan was birch'song. shes a very good fighter and has won against the best warriors. you: You're a mountainclan apprentice. you are mostly brown with one white leg. your name is one'paw, and your mentor is moon'fire. you're hunting by yourself when you see echo hunting in your territory. what do you do?