Dungeon Magic - Sword of the Elements © 1990 Taito America Corp.
North American release. Game developed in Japan. See the original Famicom version for more information: "Dungeon & Magic - Swords of Element [Model NAT-DM]
Description from the back cover:
A dark storm veils the sun, twisting trees and sowing terror. Deep in the earth the devil Darces emerges to rule over all. Join in the quest for Tores, the only sword with magic enough to smite Darces the Overlord. Search ancient caves, dank dungeons and mysterious mazes for clues to the age-old prophecy. Receive blessings and cast wondrous spells. Every step brings danger, every town holds a secret. If at last you understand, you can call the elements to your ultimate triumph!