The standard spell spirits, and their rules, as given in Hermetic Theurgy seem a bit different from the spirit design standards of RoP:M. Would there be any concerns with treating spell spirits as something that follows a form not unlike the one below?
Astrapi Xorki: Spirit of the Incantation of Lightning
Magic Might 5 (Auram)
Characteristics Cun +1, Per +1, Pre +1, Com 0, Str -2, Sta 0, Dex +1, Qik +3
Size 0
Season Spring
Virtues and Flaws Magic Spirit; Puissant Penetration, Keen Vision; Limited Gestures, Short Attention Span, Wrathful
Magic Qualities and Inferiorities Lesser Powers x5, Personal Power
Personality Traits Angry +3, Curious +2, Incantation of Lightning +3*
Abilities Athletics (flying) 3, Awareness (vision) 3, Brawl (evasion) 2, Leadership (inspire terror) 2, Penetration (Aurum) 3+2
Powers* Incantation of Lightning, 0 point, Init 0, Auram
CrAu 35: Lesser Power x3 (35 levels, -7 Might cost, +1 Init)
-
Donning the Corporeal Veil, 0 points, Init 0, Auram
CrAu 25: Lesser Power x2 (25 levels, -5 Might cost) -
Flight of the Hummingbird, 0 points, Init +1, Auram
ReAu 15: Personal Power (15 levels, -2 Might cost)
Vis 1 pawn
Appearance A thin, androgynous human with stark white hair with metal gauntlets for hands.