The encounter with Cassandra is divided into a number of stages, during which the boss will perform different, fixed actions. It looks like this:
- At the beginning of the encounter, the boss will summon five zombies, scattered around the battlefield.
- When Cassandra's health goes below 70%, she will summon three additional zombies, this time the Bolt-Stricken ones. They are able to deal almost the same amount of damage as the previous ones, but their attacks have a high chance of stunning the enemy. Attacking them in melee range may result in a stun as well.
- When Cassandra's health goes below 20%, she will summon a couple of additional enemies, as well as cast the Rage spell on herself.
- If her health drops below 10%, there's a high chance that she will cast the Meteor Shower spell.
As you can see, the encounter is mainly about dealing with absurd amounts of different types of zombies, which, fortunately for you, are extremely slow. Additionally, the three zombies located on the right side of the arena are close enough to each other that you can use one of your master-level spells, as well as a number of ranger abilities to quickly take them out in one go.
You should focus all your attention on the boss, so it's a good idea to start off by summoning a number of your own creatures near the places where zombies appear, so that they can focus the undead attacks on them. As soon as you've taken care of the zombie problem, start attacking Cassandra. Take care when attacking her In melee range, as each attack has a high chance of inflicting the Cursed status upon your warrior, which will decrease all the attributes by 2. Additionally, remember that when Cassandra dies, all her summons will vanish with her, meaning that focusing them is not worth it.