The Flood Sword is a tank that can be received when the VIP Gamepass is purchased either from the Store or from the Flood Escape 2 homepage.
The Flood Sword's design is identical to that of the Flood Sword from the original Flood Escape game. In the first game, the sword could be used to fight other players in the Flood Gauntlet. Now, it is a regular tank. The Sword can commonly be seen on players in both Pro Servers and regular servers.