Enforced Flesh

You target one incorporeal creature within range, which must make a Charisma saving throw. On a failed save, it is affected in the following manner:

• Creatures that are only temporarily incorporeal simply return to their normal corporeal form and cannot assume their incorporeal form for the duration of the spell.
• Normally incorporeal creatures that are currently occupying a physical body, such as a ghost possessing a creature or a Phaerrim using its Embody ability are unable to willingly leave their current host.
• Creatures without any normal corporeal form— such as shadows, wraiths, and ghosts that are not in a body, assume a semi-corporeal form.

An incorporeal creature forced into a semi-corporeal body often exhibits the following changes:

• Corporeal Body The creature loses its Incorporeal Movement trait and any immunity or resistance to damage from nonmagical weapons. Its size and type do not actually change, though its body does. The form the creature assumes resembles its incorporeal form, with appropriate modifications that would allow for actual locomotion, such as a wraith gaining feeble legs. 
• Speed The creature loses any ability to fly unless its form has wings. If it had no other movement speed, it gains a speed of 30 feet. 
• Attacks, Damage, and Abilities. The creature retains all traits, actions, reactions, and legendary actions that are not dependent on an incorporeal form. As a default, you can assume the creature gains a Slam action if it has no remaining attacks, with damage appropriate to its size and challenge. For example, a ghost’s Withering Touch action can either be retained or changed to a Slam action, but its Possession action is not possible with a corporeal body. 

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, you can target an additional incorporeal creature for for every two slot levels above 4th.