1. If you want to go for Summon Rebate, look at the Monthly Events. Sometimes one of the Monthly Challenges is to draw 10-times twice in Summon Treasure. If you line up the rebate with the time of the Monthly Event you can get yourself free 100 Monthly Tokens.

2. You can create a second account to plunder. Your level of the second account needs to be 15 levels under your first account or higher in order to plunder it. That way you can get free plunders every day. Having a second account is also very useful in Events like the General Mobile Missions Event where you get more rewards if the missions are being sent by someone else.

3. Use weekends to stack up on materials as well as revival potions etc.

4. If you are low on food (which is kinda hard to be low on), just put your ninjas that you want to level up in your team while you use your daily stamina on sweeping instances. You can preemptivly level up all your ninjas this way to save yourself tons of food (if you really care about that)

5. Always spin the Lucky Wheel in your group as much as possible. Alone the fact that it gives you coupons makes it totally worth it, but you also get other neat stuff depending on your Lucky Wheel level.