Corrupted Stranglegasp question

I need clarification on the mechanics of this amulet as I couldn't find anything anywhere else.

I have a corrupted Stranglegasp with 4 enchants. I want 4 different enchants on it. I have the 4 tainted oils and everything else.

Now, if I apply the 4 enchants that I want, one by one, will they all replace the current ones, or will something completely different happen?

Thanks in advance.

Yes. The newest anointment you put on it will replace the oldest.

Does your stranglegasp still have the "Can have 3 additional enchantments" line? If it's a bricked stranglegasp (into a rare), you will replace your 4 enchants with just the one you are putting on.

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