CORE
Charms: EE
Sata was pretty decent naturally in Charms, maybe not entirely, but mostly. He had almost memorized most of the text book, using some for pranks and the like, and just wanting to know them in other cases. He managed to scrap by with a EE with a little more study than some of his classes. But at least he made a pretty good grade!
Defense Against the Dark Arts: O
After the incident with his siblings, Sata took DADA to an almost unforeseen seriousness that didn't go to much else. He studied almost every day to be able to protect himself and his loved ones, and would probably keep studying even if he hadn't gotten an O. Hard work does pay off.
Potions: A
Okay okay, so Sata is no where near his sister's potion brewing ability, but he knew his way around a cauldron yeah? He was able to brew the Draught of living Death pretty successfully... The only downside was he second guess himself and restarted the potion twice. Such a waste of materials!
ELECTIVES
Cursebreaking: A
Cursebreaking was actually difficult for the very confident young Snow. He had more trouble in this class than he would have thought, and even through study only received an A.
Wizard Law: O
Sata would tell you that Wizard Law was difficult and that it was a miracle he made an O. The truth? It was only a little hard at parts. He was pretty good at Law stuff it seemed.