Pulverizing Smash

Acquisition
Skill trainers
 * Eye of the North
 * Micah Fergson (Eye of the North)
 * Sida (Gunnar's Hold)
 * Ybbob (Rata Sum)

Trivia

 * Despite looking like an axe, the warrior in the skill icon is wielding a hammer, as confirmed by Izzy
 * The warrior in the skill icon appears to wearing Warrior Tyrian armor.