Diabolus Butera is a boss that can be fought during the Save the Country Quest in Metaphor: Refantazio. Read on to learn how to beat Diabolus Butera, their weaknesses, rewards, as well as the recommended party setup and Archetypes to use against Diabolus Butera.

Diabolus Butera Overview and Rewards

Diabolus Butera Quest and Location

Diabolus Butera Boss
Quest	Level	Location
Save the Country	77	Tyrant's Star

Diabolus Butera Rewards

At the end of a battle, receiving a Spoil slightly reduces the EXP and A-EXP gained. If no Spoil is obtained, you'll receive the regular amount of EXP and A-EXP.

Unlocks Ultimate Weapons After Defeating

Upon defeating the Diabolus Butera and destroying the Melancholia Crystal where it's found, several weapons will be awared to the player.

Note that these weapons are one of the strongest weapons for their respective Archetype lineage and obtaining it will lock you out of the Secret Boss on your current run.

How to Unlock the Secret Boss

Diabolus Butera Weakness and Resistances

All Elemental Weakness, Affinities and Resistances

Recommended Party Setup Against Diabolus Butera

Best Characters to Choose

Character	Explanation
Protagonist	the Protagonist will be taking up the Prince Archetype. He will be using Royal Slash to deal extreme Almighty damage to the enemy. You can also have him inherit the skill Blizzaton for additional weakness damage.
Junah	Junah will use the Royal Masked Dancer Archetype with the Trickster's Mask. She will be in charge of debuffing the enemy with Vidyartha. She can also use Hellfire Dance to inflict weakness to fire attacks.
Hulkenberg	Hulkenberg will be using the Warlord Archetype for Support Skills like Formation of Vigor. Once Junah uses her skill to inflict fire weakness, Hulkenberg can use Blusterblast Maneuver to attack.
Eupha	Eupha will use the Royal Summoner Archetype to deal damage to its weakness with the Summon Fairy (Modified) skill.

Recommended Archetypes Against Diabolus Butera

Best Archetypes to Equip

Archetype	Recommended Skills
Prince	・Hero's Proving ・Hero's Cry ・Royal Slash Inherited Skill: ・Blizzaton
Royal Masked Dancer	・Ruin's Flameflower Trickster's mask: ・Vidyartha Synthesis Skill: ・Hellfire Dance
Warlord	・Formation of Vigor ・Blusterblast Maneuver
Royal Summoner	・Summon Fairy (Modified) ・Summon Dragon God (Modified)

Your Prince and Royal Summoner Archetype will be in charge of dealing most of the damage. Focus on using ice skills to hit its weakness and get another turn. The Royal Masked Dancer is in charge of debuffs and can also give the enemy a one time weakness to Fire Skills to allow more options for higher damage.

The Warlord will be in charge of support and providing additional damage once the weakness to fire has been applied.

All Archetypes and How to Unlock

How to Beat Diabolus Butera

How to Beat Diabolus Butera
Use Ice Skills Inflict Weakness When You Can Use Your Support Skills

Use Ice Skills

Like its Homo counterpart, the Diabolus Butera is weak to Ice Skills. Try to take advantage of this weakness and use skills like Blizzaton and Summon Fairy (Modified).

List of All Ice Skills

Inflict Weakness When You Can

Use the Royal Masked Dancer's ability to inflict weakness with Hellfire Dance. This will not only extend your turn but will also provide your party with a higher damage rate with Fire Skills.

Use Your Support Skills

Use your support skills at the start of the battle. Debuff the enemy with Vidyartha to deal larger damage to the enemy.

List of All Support Skills

Metaphor: ReFantazio Related Guides

List of All Bosses

All Story Bosses

List of Bosses
Homo Gorleo	Captain Klinger	Homo Fulquilo
Undead Grius	Zorba	Homo Avades
Monk Captain Gideaux	Greatworm Homo Butera	Heismay
Homo Jaluzo	Sergeant Xanth	Maintenance Chief Ceiba
Master Sergeant Glechom	Helmsman Cabio and Grand Chief Salva	Glodell
Sea Horror Homo Sabara	Treebeast Alento	Malvirta Drako Eht
Homo Margo	Louis Guiabern	Sogne the Icebound
Homo Gorleo (Second Fight)	Melancholia Zorba	Diabolus Gorleo
Diabolus Avades	Diabolus Butera	Diabolus Jaluzo
Diabolus Sabara	Diabolus Margo	Archdemon Louis Charadrius
More	Destroyer Charadrius

All Optional Bosses

List of Bosses
Fire Dragon Mauna	Grotesque Guptauros	Maneater Manjula
Catherina the Bounty Queen	Goborn King	Demo Man Goddard
Alpha Rockworm Valmo	Kadablich	Roger the Libertarian
Lina the Machinist	Trove Imitec	Fatolich
Kokasados	Orgas	Kokasadors
Homo Pento	Psyocropos	Leogron
Milo the Adonis	Rudolf the Roussainte Lion	Icebeast Chimenzahn
Ziocropos	Ordemos	Mad Sanctor Hyperic
Jin the Charlatan	Serial Killer Vinca	Kokamordos
Bandit Chief Cistus	Homo Sandro	Devourer of Nations
Devourer of Stars	Devourer of Flames	Elegy of the Souls
Redscale Apocalypse Dragon