Son of the Serpent
Pupil
Many differences. A major one is actually established in the description. The mere fact some are arcane and some are divine changes the nature of the spell. The actual magic itself is a different sort of mystical power source. One is very fundemental (arcane) and one has a step in between. A god. A god has transformed arcane power into dovine power which can only be used for certain purposes. Think of arcane energy as crude oil and the divine as gasoline. Thats actually exactly whats happening. One version of a spell just runs on crude and the other has a motor thats a tad picky. Yes i know this explanation is heavy in metaphors. Its all legit. Also all the shaping of the magic is done by the arcane caster. The cleric does a minimal amountbof shaping.Where’s the rule that there’s any difference?