- Granblue revolves around Calling units from the Drop Zone so this is one of the best ways to get your cards there.
- You do have to be careful not to send all your cards there though as you will then lose automatically.
- Great way to get Monster Frank and Captain Nightmist into the Drop Zone so their effects can activate.
- Same can be said for Skeleton Demon World Knight, Spirit Exceed and Deadly Swordmaster's skill.
- Also allows more powerful selection of units when King of Demonic Seas, Basskirk's Mega Blast activates.