Hogwarts Legacy

Fastidio's Monster Boss Fight Guide

Hogwarts Legacy Fastidio

This is a guide on how to beat Fastidio's Monster, a boss in Hogwarts Legacy. Read on to see strategies against Fastidio's Monster, rewards, and attack patterns!

Fastidio's Monster Overview

General Info

Hogwarts Legacy Fastidio
Rewards None
Quest Minding Your Own Business
Profile A rather violent combination of crates, barrels, and bits of furniture conjured up for fun by Fastidio the poltergeist.

Fastidio's Monster Weaknesses

Weakness 1 After the monster slams its club on the ground, flipping it upward will have a greater leverage than usual, sending the club into the monster's face for a powerful blow.
Weakness 2 Hitting the monster with its own barrel will catch it off guard and make it more vulnerable to follow-up attacks.

How to Beat Fastidio's Monster

Tips and Strategies

Use Flipendo When It Strikes the Ground

Fastidio's Monster shares the same attacks and weaknesses as the regular troll enemies, so you can use Flipendo when it strikes the ground to send its club into the monster's face.

This deals massive damage and also stuns the monster, allowing you to follow up with other spells such as Confringo and Diffindo.

Flipendo Effects and How to Get

Use Ancient Magic Throw to Throw Back Its Own Boulder

The monster may sometimes throw boulders at you as its ranged attack. You can block it with Protego and then use Ancient Magic Throw before the boulder lands on the ground.

How to Hit a Troll With Its Own Boulder

Save Ancient Magic for the Third Phase

Hogwarts Legacy Beat Fastidio
While spells like Diffindo and Confringo (and even basic casts) already do pretty good damage to the monster, Ancient Magic is capable of depleting almost an entire phase of the monster's HP in one blast.

You should save this until the third phase, where the camera flips and movement controls become inverted, to lessen the amount of time you'll have to fight the monster upside down. Don't waste Ancient Magic's potential by using it in the first phase, which is relatively easy to get through.

Ancient Magic Effects and How to Get

Take Advantage of its Limited Range

Hogwarts Legacy Fastidio

The monster mostly uses melee attacks, so keep your distance from it and deal damage from afar. You can keep it at a distance with Arresto Momentum or Glacius, which come especially in handy when it tries to throw a rock at you or tries to run at you.

Fastidio's Monster Attack Patterns

Attack Description
Three-Hit Melee Attack
(Blockable)
The monster will run at you and swipe at you then pound the ground.
Ranged Attack
(Unblockable)
The monster will throw a rock at you.

Hogwarts Legacy Related Guides

Hogwarts Legacy - Boss Guides

List of Boss Guides

All Hogwarts Legacy Bosses

Main Story Bosses
Armored Troll Pensieve Guardian
Graphorn Victor Rookwood
Ranrok Dragon
(Final Boss)
Side Quest Bosses
Fastidio's Monster Cassandra Mason
Solomon Sallow Theophilus Harlow

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