Shield spell
For Zelda II The Adventure of Link on the Nintendo Entertainment System (NES).
What it does
Halves the damage enemies do to Link. It helps most while his life level is still low.
Official art

From the official guides
Raises Link's life level temporarily. Reduces damage inflicted by the enemy by half. This magic is important while Link's level is low.
Raises Link's LIFE level for a while. Damage from enemies is cut in half. This spell matters while Link's level is low.
Strengthens Link's defenses. Within one screen, an enemy's blow will fall with only half the force.
Halves the damage Link takes from enemies. Link's clothes turn red when you use it. Always use it where strong enemies are waiting!
This magic halves the damage you take from enemies!! While Link's level is low it is a big help. The magician in the town of Rauru gives it to you.
The spell the magician in the town of Rauru teaches you is Shield. With this spell, the damage you take from enemies is cut in half. Be sure to cast it before you face a strong enemy.
A typical lasting spell. It halves the damage you take from enemies. You can learn it in the town of Rauru right after the start. It is very useful.
Magic used
Magic the spell uses at each of Link's magic levels. A magic container holds 16.
| Level | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|
| Magic | 64 | 48 | 48 | 32 | 32 | 32 | 32 | 32 |
Where Link learns it
The wise man of Rauru teaches it to Link once he has a magic container.
IN PARAPA DESERT USE THIS MAGIC TO SURVIVE