Something gets the activated ability from Lazav, the Multifarious like Necrotic Ooze. And activate it to copy something else. Is the "except it's name is" changed by the moment Necrotic Ooze got the ability normally if such a card name is like that it gets updated, or is Lazav, the Multifarious fixed there?
Lazav, the Multifarious has a new template for these sorts of effects. Previously, the copy effect would ignore the characteristics that are excepted this way, but now they just overwrite those values with the listed value.
What this means for Necrotic Ooze et al. is that instead of keeping their original name as they would before, they now become named Lazav, the Multifarious (or whatever other name is tied to the ability). This is, of course, a problem if you already control a Lazav.











