

Select an enemy follower on the field and change its attack and defense to 1. Spellchain (10) - It loses all abilities.
QIf a follower with Last Words loses all abilities and then is put into the cemetery, does its Last Words ability trigger?
ANo, it doesn't.
QIf a follower with "when this card is returned to hand from your field" loses all abilities and then is returned to hand, does its ability trigger?
ANo, it doesn't.
QIf I select a follower that's been given the Armed trait by Draconic Weapon and cause it to lose all abilities, does it lose the trait as well?
ANo, it doesn't.