Maelstrom (メイルストローム Meirusutorōmu) are a series of cards that include "Maelstrom" in its card name exclusive to the Aqua Force clan. The first card was introduced in Booster Set 8: Blue Storm Armada, the series later received a new member in Booster Set 9: Clash of the Knights & Dragons, and received its first support in Booster Set 15: Infinite Rebirth. The series primarily focuses on effects that activate after a certain amount of battles, typically involving either retiring opponents' rear guards and drawing, or guard restriction. In G Booster Set 13 : Ultimate Stride, Maelstrom has a greater focus on putting cards into the soul from the drop zone to activate abilities.
List of "Maelstrom" cards
- Blue Storm Dragon, Maelstrom
- Blue Storm Dragon, Maelstrom (Break Ride)
- Blue Storm Dragon, Maelstrom (V Series)
- Blue Storm Karma Dragon, Maelstrom "Яeverse"
- Blue Storm Supreme Dragon, Glory Maelstrom
- Blue Storm Supreme Dragon, Lordly Maelstrom
- Blue Storm Breaking Dragon, Engulf Maelstrom
- Blue Storm Helical Dragon, Disaster Maelstrom
- Blue Storm Marshal Dragon, Admiral Maelstrom
List of support cards