Inquisitor Kron would be worded similarly to Pandora
“Whenever you replace a card, summon a 2/2 Prisoner with Rush, Ranged, Frenzy, Flying, Forcefield, or Provoke at random on a nearby space”
I don’t think Spriggin can be templated well. Each Spriggin Kin has a very wordy effect.
Yes. The only exception is Aspect of Shim’zar. That spell can transform a minion into any Battle Pet except RAWR.