Talk:Sword Types/@comment-60.49.60.29-20150610053631/@comment-26215551-20150610054421

You can think of it as the Oodachi hiting one enemy and doing "splash damage" to the other two enemies around that one. Thus, if one of those two adjacent enemies is already dead, or isn't there because the one is at the edge of the list of enemies, then only two enemies get hit.