In the most subdued voice that she could, Haniel began to utter the incantation to activate the artefact that she was bequeathed with.
"aut viam inveniam aut faciam;
cetera desunt;
assecuratus non quaerit lucrum sed agit ne in damno sit"
Usually, artefacts didn't require the user to cast a spell before they could be exploited. Having said that, artefacts that had the purpose of manipulating and storing mana were, more often than not, belonged to a group that was animate and had a will. These artefacts didn't desire to yield to a user that had a weaker prowess than them. And even if they're being wielded by someone who qualified to their standards, there was still the matter of whether they could assimilate with the individual's grimoire or not. The incantations were one of the elements that the animate artefacts utilized to keep their existences exclusive.