Limited time offers with unnecessary urgency.
"'Last Chance' to buy packs that end up coming back later."
"every weekend they run double experience events and experience can be difficult to get unless you play a lot."
"Store only allows you to purchase, for instance, 1 guild token a day. Field only allows you to purchase, for instance, 1 potential fruit a day. Limited time events allow you to purchase, for instance, up to 200 potential fruits, leading many to spend ~$600 USD in order to take advantage of these 3-4 day events."
"time-limited banners, characters on banners often do not reappear for months and/or ever."
"Very regular limited time offers that are made to seem like an essential thing to complete"