If the target creature is your familiar, it gains energy resistance, fast healing, damage reduction, and additional damage for its smite attack as though its Hit Dice were equal to your character level. Otherwise, use its actual Hit Dice to determine these qualities. If the target creature becomes axiomatic, its linked minds ability applies to you (and only to you).
You cannot cast this spell on another character’s companion creature.
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I'm confused! (not hard!)
At least in the Basic books clerics don't have familiars and you can't cast on other peoples familiars, comapnions etc.
The paragraph above definately implies you can cast on creatures not your familiar and it also precludes others familars.
Unless the caster is multiclass Clr/Wis or Soc this spell is useless. Unless it can be cast on non comapnions - which IMO it can and the phrasing above supports it.
I see no reason why it should be wrong for a good cleric to create a bunch of celestial creatires or an evil cleric to make dire creatures.
I do see a problem if the spell allows PC as targets - however as the spell is written I can't see that this is precluded as PC's are creatures.
Now I don't have the book this was taken from so I may be missing something
Cheers
Bob