When this move is used, the Mii Swordfighter spins in place then slashes, sending a swirling gale forward. The gale speeds up as it moves, and hits enemies multiple times as it passes through them. If the gale slides off an edge, it will fall slightly before continuing forward in a straight line. The move is aesthetically similar to Link's Gale Boomerang, but behaves more like the Ore Club's tornadoes. The attack is also capable of destroying some objects, such as Diddy Kong's bananas. If an opponent touches the tornado during its final frames of animation, they will not take any damage and simply be lifted up (or pushed backwards) by it, boosting their recovery. If the Swordfighter uses Gale Strike in midair, they will gain a bit of upwards momentum.
In Ultimate, the move travels a shorter distance overall and has lost its pushing ability. To compensate, it deals much more damage, launches much faster, and has been repurposed into an extremely effective combo starter, dealing set knockback and keeping enemies in a reeling animation for a long duration. This allows it to combo into aerials or Hero's Spin at any percent.
Special Move customization was added in Super Smash Bros. 4. These are the variations: