Im-a sheng-ab.
Buffy Summers[src]

Buffy vaporizes Adam's bullets with the Sumerian defense spell.

This spell created a barrier of heat so powerful that it could vaporize speeding bullets. It was used in the final battle against Adam to protect Buffy against his machine gun.

The spell could only be cast by powerful sorcerers and required the caster to recite the Sumerian words for "Boil the air."