A Swashbuckler can regains panache when "Critical Hit with a Light or One-Handed Piercing Melee Weapon" or "Killing Blow with a Light or One-Handed Piercing Melee Weapon" by herself.
"A guiding blade regains panache whenever an ally reduces a creature to 0 or fewer hit points, instead of when she herself does so."
Q1：does her ally must reduces a creature to 0 by a Light or One-Handed Piercing Melee Weapon for she regains panache？
Q2：When make a Critical Hit with a Light or One-Handed Piercing Melee Weapon herself, can she regains panache？