Move PDB to a new host
Option 3.

Unplug the PDB:

Unplugging a PDB

ALTER PLUGGABLE DATABASE salespdb UNPLUG INTO '/oracle/data/salespdb.xml';

Copy the files (XML + database files), then perform the checks listed below:

Plugging In an Unplugged PDB

Finally plug in the PDB:

Examples of Plugging In an Unplugged PDB

CREATE PLUGGABLE DATABASE salespdb USING '/disk1/usr/salespdb.xml' 
  NOCOPY 
  TEMPFILE REUSE;