If the loyalty ability has -X in its cost, the copy uses the same value of X.

You must choose an existing planeswalker type, such as Chandra or Guff.

The delayed triggered ability created by Leori's last ability, as well as the copy it creates, resolve before the ability that caused it to trigger. They resolve even if that ability is countered.

Copying a loyalty ability doesn't add or remove loyalty counters from any object.