Implode was an artifact wielded by Kain as a fledgeling vampire during the events of Blood Omen: Legacy of Kain. When used, Implode fired a projectile straight ahead that would, if it struck an enemy, cause their body to compress rapidly until they ruptured in a bloody spray of gore and tissue.
"Of all the methods I employ, this is perhaps the cruelest, causing my victim's body to shrink on itself, crushing bones and rupturing organs 'til the pressure inside bursts the sac of fleshy skin, spraying its contents for all to see."