Yuuna doesn't do anything fancy, she just snaps orders.

"Zedd, Denki, drop them. Hyozan, give the riders something to think about."

The Electric types comply, and Electroballs fly out like cannonfire. The Avalugg then calls up a Blizzard, causing ice and snow to crash down on top of the Wailords. The woman herself points her sword at the lead rider and stabs it forward like a needle, projecting a bolt of lightning from the enhanced weapon, aiming for his hands.