The Spell Spell is a spell from Zelda II: The Adventure of Link. Link learns this spell from the Wise Man in the Hidden Town of Kasuto. The primary use of the spell is to open the vault that contains the Magical Key. At the right edge of the Hidden Town of Kasuto, if Link casts the spell the vault rises from the ground. The spell can also turn enemies into Bots. However, the enemies will respawn if Link moves offscreen, and some of the most powerful enemies such as the Eagle Knights are immune to its effect.