[ sabo i'm sorry he just Says Shit and doesn't really care about whether someone understands it or not. so sabo can just :thisman: in peace while he just yaps to himself. ]

Correct. It's a special ability – or abilities – that are completely specific to an individual based on who they are. Specifically, it's only really applicable to Heroic Spirits. The Witch doesn't strike me as one, so it's only an approximation of what this magecraft could be.