Speed Spell Card

"Speed Spells" are a category of Spell Cards that work with the Field Spells "Speed World" and "Speed World 2", shown in the anime "Yu-Gi-Oh! 5D's". Furthermore the required conditions for the activation of these cards is quite unique. Not only because of the rules each one possesses, but also due to the point that they can only be played when one of the aforementioned Field Spell Cards is on the field. This type of Spell Card is exclusively used in Turbo Duels.

Almost all Speed Spell cards require a cost of removing Speed Counters accumulated through Speed World. This is a way to balance them, as more powerful cards will require more Speed Counters to be removed. Additionally, there are a few Trap Cards that will increase Speed Counters or gain effects depending on the number of Speed Counters the player has.

"Speed Spell - Harpie's Feather Duster", "Speed Spell - The Shallow Grave", "Speed Spell - Twister", "Speed Spell - Slowdown Machine" and "Speed Spell - Raigeki", along with many others are only available in the Nintendo DS game Yu-Gi-Oh! 5D's Stardust Accelerator and Yu-Gi-Oh! 5D's World Championship 2010: Reverse of Arcadia, where Turbo Duels can be used.

In these games, all Speed Spells that are based off Forbidden Cards, like "Speed Spell - Raigeki", require you to remove 10 to 12 Speed Counters. Ironically, though Speed Spells cannot be put in a normal deck, the Traps that support Turbo Duels can still be used, but will have no effect.