oh dear! everything all right?
"Could we call me a foreigner instead?" Zack rejoined. "Sorry, but the whole alien thing is a sore subject." An alien to Zack was something like Jenova, a creature so strange and horrific that he was still having trouble wrapping his head around the idea five years later. Sometimes, remembering that he had some of her cells inside of him gave him the creeps, despite the advantages they gave him. Advantages like shrugging off getting shot.
"A low-level Cure's exactly what it sounds like, but I'm guess you've never heard of materia. Long story short, certain materia let you cast certain spells, and this one lets me cast a low level healing spell."