Icewyrm (青竜 Seiryū?, Azure Dragon) is Crono's seventeenth-level katana in Chrono Trigger (DS). It has an attack power of 160 and a base critical hit rate of 40%. It is obtained by giving the Rusted Blade to a villager in the Lost Sanctum. The weapon's sprite in-battle is colored with a unique pale-blue (a pale version of the Swallow), with its slashing trail being a rippling effect of impact-flashes colored light-gray, much like the Empyrean Blade's effects.