Kill a Liurnia boss incantations only

To complete this square, you must defeat a boss in Liurnia by using only incantations. Any boss in Liurnia counts for this square, as long as the only source of damage to the boss are incantations you cast. Spirit Summons are not allowed, nor are NPC summons, sorceries, and weapons.

There are a few good options for this square, but realistically you need to make sure you have enough Cerulean Flasks to deal damage enough to kill the boss. Therefore, bosses with large amounts of HP are not advisable.

Incantations are randomized by the weapon randomizer, so it may be necessary to take multiple checks in order to find an incantation that is viable. That makes this square synergistic with Learn 12 Incantations.