Do not play this game. Nexon will steal your money. – Fantasy War Tactics R Review

Game seems intentionally designed to spend large amounts of premium currency for little benefit via poor UI design. Extremely grindy and nothing but a money grab. Don't spend money on it, the game will just steal money from you through a confusing and laggy UI, or through bait-and-switch tactics. The company also has legitimately terrible customer service, some of the worst I've ever encountered. Update: now the game has become explicitly "Pay to win," with the addition of items and characters which cost A HUNDRED DOLLARS to unlock, after a promise to never gate characters behind in-app purchases. What a joke! Stay far, far away from this "game." Do not play it.
Review by Nickname736367 on Fantasy War Tactics R.