Raida

The Raida (雷打, Rai Da, "Thunder Strike") is one of Ibuki's special attacks, introduced in the Street Fighter III series.

Description
Executed by performing a half-circle backward motion and pressing punch, Ibuki attempts to grab her opponent; if successful, she holds her opponent's arm, puts her fist to the ribs underneath, charges her first with ki energy and releases that energy in a powerful explosion which sends the opponent flying across the screen. Although seemingly a command grab, the attack can be blocked either high or low, but it can be used in ground juggles. There doesn't appear to be any difference when different punch buttons are used.

The EX Special version inflicts more damage and has a slightly wider hitbox.