The whole premise of this episode didn’t make sense (perhaps someone can explain?).
It was possible for both Facillier and Ivy to get the magic they needed from Anastasia without Ivy endangering her sister’s life. All either had to do was ask. There was no need for Facillier to trick Ivy to get the magic for himself/Regina, and Ivy is intelligent enough and knows enough about magic to figure about that asking would have been sufficient.
All that illogical drama was created to have an emotional bonding session between Regina and Facillier, and Anastasia and Ivy. The ends didn’t justify the means. The characters need better thinking patterns. But I guess I am expecting too much at this point.