Guild Wars 2

Sometimes in traits i see Phantasm only but then i see Ilussion

Can anyone clarify?

Clones = copies of you, usually cheap and disposable, spam a basic weapon attack but do no damage (they can spread conditions, though; and traits can add stuff)

Phantasms = ghostly copies of you, execute a specific move (like the Illusionary Berserker “Imagined Burden” whirling attack) on a timer

Illusions = both clones and phantasms

Short answer: yes.