Torpor Orb

Abilities that apply "as [this creature] enters the battlefield," including many abilities that ask a creature's controller to choose a color or creature type, are unaffected.

Replacement effects are unaffected by Torpor Orb's ability. For example, a creature that enters the battlefield with one +1/+1 counter on it will still receive a +1/+1 counter.

Look at the permanent as it exists on the battlefield, taking into account continuous effects, to determine whether any triggered abilities will trigger. For example, if you control March of the Machines, which says, in part, "Each noncreature artifact is an artifact creature," each artifact will be a creature at the time it enters the battlefield and will not cause triggered abilities to trigger.