This is a Synthesis Calculator, and a guide to Synthesis and the best Monsters to synthesize in Dragon Quest Monsters: The Dark Prince. Use Game8's Synthesis Calculator and Reverse Synthesis Calculator, and our guide to learn how to synthesize and fuse any Monster, when you unlock Monster Synthesis, what Monsters can be synthesized from any Monster, and which Monsters are best to use for Synthesis.

Synthesis Calculator

This is a Synthesis Calculator for Dragon Quest Monsters: The Dark Prince, which shows how to synthesize any Monster. If you aren't sure what you want to try to synthesize, check out our list of Best Monsters to Synthesize below, as well as our Best Monsters guide first.

Reverse Synthesis Calculator

The Reverse Synthesis Calculator shows what can be synthesized using any selected Monster as a parent. Use this to check if a Monster you encounter is worth Scouting to synthesize it into something more powerful.

Best Monsters to Synthesize

Attention!	The content below is translated from the Japanese Game8 site, so some names and terms might not be the correct ones in the English version. If you found any terms that need to be corrected, make sure to let us know in the comments!

Best Starting Monsters
Raptile	Cannonbrawler	Hunter Mech	Dessert Demon
Mandrake Major	Axesaurus	Warhog	-
Best Intermediate Monsters
Archdemon	Killing Machine	Flutter Slime	Shogum
Best Advanced Monsters
Belial	Overkilling Machine	Slionheart	King Cureslime
Best Scouting Monsters
Gem Slime	Cetacean Sorcerer	Overkilling Machine	Night Clubber

We highly recommend synthesizing these monsters when going through the game or defeating bosses. Some monsters are also great at scouting other monsters for future synthesizing.

Best Early Game Monsters to Synthesize

Monster	Explanation
Raptile	Rating: ★★★★★ Synthesis Method: Dragon Family x Material Family ・Can attack twice in a row ・You can synthesize it at the beginning of the game
Cannonbrawler	Rating: ★★★★★ Synthesis Method: Demon Family x Material Family ・Can learn powerful spells immediately ・You can synthesize it into a Hopper Trooper
Hunter Mech	Rating: ★★★★★ Synthesis Method: Restless Armor x Material Family ・Can attack twice in a row ・Strong Swordsmanship skills ・You can synthesize it into a Killing Machine
Dessert Demon	Rating: ★★★★★ Synthesis Method: Chocolate Golem x Imp ・Can learn Kaboomle immediately ・You can synthesize it into an Archdemon
Mandrake Major	Rating: ★★★★☆ Synthesis Method: Dragon Family x Demon Family ・You can synthesize it from Raptile ・ Easy to increase to D Rank
Axesaurus	Rating: ★★★☆☆ Synthesis Method: Dragon Family x Demon Family ・High damage ・ Easy to increase to D Rank
Warhog	Rating: ★★★☆☆ Synthesis Method: Raptile x Restless Armor or Mandrake Major x Beast ・ Easy to increase to D Rank

Best Mid-Game Monsters to Synthesize

Monster	Explanation
Archdemon	Rating: ★★★★★ Synthesis Method: Dessert Demon x Grim Keeper ・Great combo of Bang Skills and Bangmeister Trait ・Can defeat Metal Slimes with Crafty Banger ・Overall high stats
Killing Machine	Rating: ★★★★☆ Synthesis Method: Hunter Mech x Skeleton Swordsman ・Tactical Trooper is a great trait ・Duelist Talent is top-class ・Can be used to synthesize Overkilling Machine
Flutter Slime	Rating: ★★★★☆ Synthesis Method: Slime Family x Nature Family ・Health Professional trait makes it a great healer ・Unique Talent gives it full-party healing ・Sadly, nothing good to synthesize it into
Shogum	Rating: ★★★☆☆ Synthesis Method: Beshemoth Slime x Metal Slime Knight ・Gets powerful skills from Metal Slime Knight ・Easy B-Rank Monster to Synthesize ・Can be used to synthesize Slionheart

Best Endgame Monsters to Synthesize

Monster	Explanation
Belial	Rating: ★★★★☆ Synthesis Method: Archdemon x Buffalogre ・Great combo of Ultra Crafty Banger and Bang Skills ・Health Professional trait makes it a great healer ・Can become Hargon via 4-Monster Synthesis
Overkilling Machine	Rating: ★★★★★ Synthesis Method: Killing Machine x Jugular Joker ・Elite physical attacker ・Maniac Unique Talent is great ・Can be used to synthesize Uberkilling Machine
Slionheart	Rating: ★★★★★ Synthesis Method: Shogum x Superior Slime ・Health Professional trait makes it a great healer ・Depending on its Skills, can be a backup attacker ・Can be used to synthesize Greygnarl or Emperor Slime
King Cureslime	Rating: ★★★☆☆ Synthesis Method: Cureslime x Crème Caraslime ・Health Professional trait makes it a great healer ・Easy to synthesize ・Sadly, nothing good to synthesize it into

Best Scouting Monsters to Synthesize

Monster	Explanation
Gem Slime 【Wisdom】	Rating: ★★★★★ Synthesis Method: Metal King Slime × Balhib ・Highest Wisdom of any Monster ・Amazing defenses
Cetacean Sorcerer 【Wisdom】	Rating: ★★★★☆ Synthesis Method: Baleen Mage × King Slick Slime ・Acquires Rando-Ping Trait at Lv.40 ・Top-class Wisdom and growth speed
Overkilling Machine 【Attack】	Rating: ★★★★☆ Synthesis Method: Killing Machine x Jugular Joker ・Great for using in the main story too ・Top-class Attacker
Night Clubber 【Attack】	Rating: ★★★★☆ Synthesis Method: Gigantes x Pickayune ・Top-class Attacker ・Big Bully trait hits hard

Best Monsters to Use for Synthesis

Best Early Game Monsters to Use for Synthesis

G Rank
Dracky	Slime	Khalamari Kid
Vegandragora	Dragonthorn	Mischievous Mole
Skeleton	Bongo Drongo	Lampling
Airbagon	Leery Lout	Woebergine
F Rank
Foo Dog	She-Slime

Best Early-to-Mid Game Monsters to Use for Synthesis

G Rank
Eggsoskeleton	String Fella	Bag O' Laughs
Sacksquatch	Bambooligan	Mud Mannequin
F Rank
Slime Stack	Raptile	Chocolate Golem
Slime Knight	Restless Armour	Hunter Mech
Dessert Demon	Cannonbrawler	Axesaurus

Best Mid-Game Monsters to Use for Synthesis

E Rank
Behemoth Slime	Beleth	Mandrake Major
Skeleton Soldier	Skeleton Swordsman	Escudogre
D Rank
Beshemoth Slime	Hypothermion	Warhog
C Rank
Grim Keeper	Shadow Slime	Maniacal Mole
Fright Knight	Sintaur	-

Best Endgame Monsters to Use for Synthesis

B Rank
Jugular Joker
Bone Baron	Buffalogre	-

Best Post-Game Monsters to Use for Synthesis

A Rank
Lieutenant Goresby-Purrvis	Ronin Raccoon	Serpent Of The Scales
Phoenix	-	-

Best Combinations to Increase Rank

	Parent 1	Parent 2	Result
F→E	Armoured Wartoise	Beast Family	Wyrtle
-	Wyrtle	Demon Family	Beleth
E→D	Beleth	Restless Armour	Hypothermion
D→C	Hypothermion	Slime	Shadow Slime
C→B	Shadow Slime	Frolicker	Drooling Ghoul

These combinations of two monsters where one parent is of a certain rank will always result in a Monster of one rank higher. This will allow you to easily climb the ranks to get a high-rank Monster.

How to Unlock Monster Synthesis

Clear Mausoleum's G- Rank

After clearing the G-Rank in the Mausoleum, return to Rosehill Tower and talk to the NPC that will allow you to synthesize monsters.

Endor Arena Guide and How to Win the Arena

How to Synthesize Monsters

How to Synthesize
1	Select two parent monsters for synthesis. (You can synthesize monsters Level 10 and above) ►How to Level Up Fast
2	Select the offspring that you want to produce. ►Best Monsters Tier List
3	Confirm the parent monsters. You can select up to 3 Talents for the Offspring to inherit. ►Best Talents for Story and PVP
4	Choose the skills that the you want the offspring to inherit. (Half of the skill points will be passed on to the offspring)
5	Make one final check and select Synthesise. (Be sure that all measures are final as the parent monsters will be lost.)
6	A new monster will be synthesized, here you can rename your monster to distinguish it from your other monsters.

Monster Synthesis Location

Rosehill Tower Basement

Where to Synthesize Monsters
1	Take the Teleporter to Rosehill Tower.
2	Go past the NPC and head down the stairs of Rosehill Tower.
3	Go to the end of the hall in the Basement of Rosehill Tower
4	Talk to Monty in the Basement of Rosehill Tower to synthesize monsters.

Synthesis Types and Methods

Systematic Fusion

Systematic Synthesis is a form of synthesis between appropriate strains of A and B. If the Family and Rank are the same, then the resulting offspring will be the same no matter which monsters you use. It is easy to synthesize with this method because you won't need to specify which monsters to use. However, this method cannot be used to increase the rank of the monster offspring.

Examples of combinations of the same rank

Parent A		Parent B		Monster Offspring
E Rank	×	E Rank	→	Drake Slime Raptile

If an E-rank monster from the Slime Family and an E-Rank monster from the Dragon Family are combined, the same E-rank Drake Slime and Raptile will appear as candidate offsprings.

Examples of combinations between different ranks

Parent A		Parent B		Monster Offspring
E Rank	×	C Rank	→	Drake Slime Raptile Noble Gasbagon Shadow Slime

If you combine an E-Rank monster from the Slime Family and a C-Rank monster from the Dragon family, E-rank Drake Slime and Raptile, as well as C-Rank Noble Gasbagon and Shadow Slime will appear as candidate offsprings.

Examples of A-Rank and Higher Monsters Ranks

Parent A		Parent B		Monster Offspring
A Rank	×	A Rank	→	Goomulonimbus Drakulard

B-Rank is highest ranking monster you can obtain from Monster Synthesis. Even if you choose parents that are of A-Rank, an A-rank monster will not be synthesized from the combination.

Species Fusion

Fusions between members of the same Family as well as Systematic Discontinuation refers to a method of synthesis wherein specific monsters are required. Monsters that have a gold frame in the synthesis menu serves as an indicator of this.

►Monster List: See all Monster Formulas

Examples of Family Combinations

Parent A		Parent B		Monster Offspring
Hunter Mech	×	Restless Armour	→	Killing Machine
Killing Machine	×	Knight Errant	→	Overkilling Machine
Overkilling Machine	×	A3G15	→	Trauminator

The race of the offspring is determined by both parent monsters. There is no combination pattern or more than two in the mix.

Examples with both Family and Rank Patterns

Parent A		Parent B		Monster Offspring
Drakularge F Rank	×	Jowler C Rank	→	Drakulard (B-Rank)
B Rank	×	E Rank	→	Drakulard

Some monsters can be synthesized from two different patterns: Race and Rank. The basic abilities do not change no matter which way you create them, however there is an advantage in synthesizing with Family combinations as you are more likely to produce a higher-Ranked monster.

Examples of Family Strain Combinations

Parent A		Parent B		Monster Offspring
Rockbomb	×	G Rank	→	Magmalice
Rockbomb	×	G Rank	→	Firn Fiend
Rockbomb	×	B Rank	→	Firn Fiend

A family strain combination is a combination that can be made with a specific family of monster on one side, and any family strain on the other. It will not matter whether the rank of the monster is G or S. It can thought of as systemic synthesis with loose conditions.

4-Parent Combination

A 4-Parent combination is a special combination that occurs when the four grandparent bodies are specific monsters needed for synthesis. There need not any specific parent monster, only the grandparent monsters need to be specific. These are rare monsters that take a considerable amount of time before they can be synthesized.

Examples of 4-Parent Combinations

Granparents		Parents		4-Parent Monster Offspring
Magmalice	→	Anything	→	Balhib
Firn Fiend
Coralossus	→	Anything
Stone Golem

When the four monsters have been chosen, regardless of the combination used for the grandparents, the resulting 4-Parent Monster offspring will remain the same.

Dragon Quest Monsters: The Dark Prince Related Guides

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Story Walkthrough	Monsters
Skills	Talents
Traits	Bosses
Items	Maps & Locations

Popular Articles

Popular Articles
Synthesis Guide & Calculator	Best Team	Best Early Game Monsters
Egg Farming and Locations	Best Monsters Tier List	Metal Slime Farming Guide
Popular Story Articles
Best Scouting Monsters	Strong Monsters & Locations	Mini Medal Locations
How to Level Up Fast	Best Talents for Story and PVP	Post-Game and 100% Guide
Popular Battle Articles
9 Quick Tips to Master	Ranked Guide: How to Win in Ranked PVP	Best Healer Monsters
Endor Arena Guide: How to Win	Monster Tactics and Instructions	Quickfire Contest: Best Teams and Rewards

Metal Slime Guides

Metal Slime Guides
How to Beat Metal Slime and Locations	How to Beat Liquid Metal Slime and Locations	How to Beat Metal King Slime and Locations

Beginner and Early Game Guides

Beginner and Early Game Guides
Best Starting Monster	Best Protagonist Name	How to Farm Talent Points
8 Beginner Tips and Tricks for Early Game	How to Make a B-Rank Monster Easily	How to Synthesize Large Monsters
Best Way to Get Material Monsters	Best Talents Tier List By Family	Money Farming Guide: How to Earn Gold Fast
How to Unlock Synthesis	How to Release Monsters and Rewards	How to Scout and Catch Monsters Easily
Monster Size: Differences and Benefits of Monster Sizes	Experience Points System Guide	How to Increase Chance to Scout After Battle
Costume List: How to Change Costumes	Matchmaking Guide	-

Mid to Late Game Guides

Mid to Late Game Guides
Accessory Synthesis Guide	Best Accessories	How to Increase Monster Stats
Elven Utopia: How to Unlock Scrolls	List of Rare Monsters	Best S-Rank Monsters
Master Dragon Choice: Rose or Toilen?	How to Get Shiny Monsters	How to Increase Resistance
Secret Boss: How to Beat Ludo	How to Farm Seeds Fast	Online Gateway Shop Schedule and Item List
Text Prompts Meaning: "Particularly Powerful" and "Sparkling Brightly"	-	-

Frequently Asked Questions (FAQs)

Frequently Asked Questions (FAQs)
Is DQM3 Available on PC?	Are There Multiple Endings?	Demo Guide: How to Carry Over Save
Best Monsters To Transfer From the Demo	Are There Secrets and Easter Eggs	Game Length: How Long To Beat?
Is there a DLC?	Is There a Connection Between DQM3 and Dragon Quest 4?	Are There Grimoires in This Game?
Are There Plus Variants?	Missable and Unchangeable Features	-

Updates and Patches

Updates and Patches
Updates and Patch Notes	McDonald's Promo: How to Get Exclusives Outside of Japan
List of Gift Codes (December 2023)	How to Fix Errors