Ice Blade

The Ice Blade, also known as Hyougetsujin (『氷月刃』) in Japan, is an EX Skill from Mega Man Zero 4, learned by defeating Fenri Lunaedge at snowy weather.

By pressing down while slashing on solid ground, Zero will send an ice-elemental sword beam that travels fast across the ground. Any enemy it touches in its path will be frozen instantly, if not destroying them outright.