I’ve collected all the snowballs and got the ice beam tm. I’m trying to find the girl building the snow greninja but I can’t find anywhere. Is there anything else I have to do after getting the tm, or is there a wait time/step requirement?
Make sure you’ve done the Snowmon quest in Deyraan as well. There shouldn’t be anything else you should have to do, as far as I know. For the future, there will also be a reward for giving 100 Snowballs to an NPC in Settlement Juliet.