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Monster Hunter Stories 3: Ultimate Water Element Heaven's Eye Tamamitsune Gene Build Complete GuideThis guide introduces the recommended gene build and practical combat usage for Soulseer Mizutsune, considered the strongest Water-element damage dealer in Monster Hunter Stories 3. We analyze the difference in expected firepower between a Bingo-priority build and a Full Power gene build, and provide a detailed guide on efficient skill selection. Don't miss this guide if you want to raise a powerful Soulseer Mizutsune.
Monster Hunter Stories 3: Ultimate Water Element Heaven's Eye Tamamitsune Gene Build Complete Guide
1. 🎮 Soulseer Mizutsune, Flooded Yian Garuga Hunted in 4 Turns - Live Demo!
· This video introduces the recommended gene build and practical usage for Soulseer Mizutsune, the strongest Water-element damage dealer in Monster Hunter Stories 3.
· Using the firepower expectation comparison tool previously shared on X (formerly Twitter), we analyze the damage difference between a Full Power gene build and a Bingo-priority build, and also provide a list of stamina efficiency for Water-element active skills.
· First, let's confirm Soulseer Mizutsune's power through a live combat video. In the Flooded Yian Garuga hunt demonstration, we use the Deviljho Bow to inflict defense down, then repeatedly use Mizutsune's 'Cleaving Wave' to deal immense damage.
· In the second turn, we deal additional damage with the Gunlance's 'Torrential Blast', and in the third turn, we recover the Rider's stamina to use 'Cleaving Wave' again.
· Finally, we defeat the Flooded Yian Garuga in just 4 turns, and also show a 5-turn hunt demonstration without using any items. This build performs exceptionally well against Water-weak monsters.
00:00 - 02:46
1. 🎮 Soulseer Mizutsune, Flooded Yian Garuga Hunted in 4 Turns - Live Demo!
· This video introduces the recommended gene build and practical usage for Soulseer Mizutsune, the strongest Water-element damage dealer in Monster Hunter Stories 3.
· Using the firepower expectation comparison tool previously shared on X (formerly Twitter), we analyze the damage difference between a Full Power gene build and a Bingo-priority build, and also provide a list of stamina efficiency for Water-element active skills.
· First, let's confirm Soulseer Mizutsune's power through a live combat video. In the Flooded Yian Garuga hunt demonstration, we use the Deviljho Bow to inflict defense down, then repeatedly use Mizutsune's 'Cleaving Wave' to deal immense damage.
· In the second turn, we deal additional damage with the Gunlance's 'Torrential Blast', and in the third turn, we recover the Rider's stamina to use 'Cleaving Wave' again.
· Finally, we defeat the Flooded Yian Garuga in just 4 turns, and also show a 5-turn hunt demonstration without using any items. This build performs exceptionally well against Water-weak monsters.
02:47 - 06:42
2. 🧬 Soulseer Mizutsune Recommended Gene Build and Firepower Comparison
· The recommended gene build for Soulseer Mizutsune is as follows:
GeneDescription
Speed Boost (L)Free slot. Adopted for skills that grant win streaks and consecutive attacks by the Rider during normal use. Can be excluded if you prefer to attack after debuffs/buffs.
Aqua ShotTechnical type skill. Adopted due to its highest stamina efficiency.
Cleaving WaveMain damage skill. Consumes 30 stamina, max power 240 (random). Despite power fluctuations, it remains very powerful.
Water Attack Boost (L)Enhances Water-element attack power.
Mud WavePower type skill. Adopted due to its highest stamina efficiency among Water-element Power skills.
Stamina Boost (L)Increases stamina.
Death Scythe+Speed type skill. High stamina efficiency and grants a win streak, increasing damage of the next attack.
Dancer (L)Increases evasion rate.
Evasion (L)Increases Dancer's uptime, and adopted as there are no other excellent Water-element genes.

· Many players consider adopting a 'Full Power Gene' instead of 'Speed Boost (L)' to increase firepower, but the actual calculation results are as follows:
BuildDescriptionExpected Damage (Cleaving Wave)Expected Damage (Aqua Shot)Stamina Cost (Cleaving Wave)
Bingo Priority (Current Build)Build prioritizing Bingo bonuses1288128830
Using 1 Full Power GeneUsing 1 Full Power Gene instead of Speed Boost (L)Approx. 5% increase136336 (20% increase)

· While adopting a Full Power gene increases expected damage by approximately 5%, the stamina cost of 'Cleaving Wave' increases by 20%, from 30 to 36.
· Sacrificing 20% more stamina for a 5% damage increase results in lower stamina efficiency during normal use. Therefore, prioritizing a Bingo build to maximize damage per stamina is more practical.
· For short battles within 3 turns or when swapping between two Mizutsunes, adopting a Full Power gene can yield higher damage. Consider changing the 'Speed Boost (L)' slot to suit your playstyle.
06:43 - 07:35
3. 🗺️ Main Gene Acquisition Locations
· The acquisition locations for each gene are as follows:
· Aqua Shot: Royal Ludroth Subspecies
· Cleaving Wave: Return 6-star Monsties in Water-element areas (Rank-up required)
· Mud Wave: Almudron
· Death Scythe+: Shogun Ceanataur (Rank-up to Plus required)
· Speed Boost: Specific Monsters (Refer to video)
· Dancer: Specific Monsties (Refer to video)
· Water Attack Boost: Specific Monsties (Refer to video)
· Stamina Boost: Specific Monsties (Refer to video)
· Evasion: Specific Monsties (Refer to video)
· Shogun Ceanataur, in particular, carries many genes, making it efficient for gene farming.
07:36 - 08:21
4. 💧 Water-Element Active Skill Stamina Efficiency Comparison
· Water-element active skills are primarily chosen based on stamina efficiency. It's important to select skills with high efficiency based on the power they can exert per stamina point.
Skill NameTypeStamina CostPowerStamina Efficiency (Power/Stamina)Features
Aqua ShotTechnical15704.66
Cleaving WavePower30Max 240Max 8Random element, very powerful main damage skill
Mud WavePower20804
Death Scythe+Speed15704.66Grants Win Streak

· 'Cleaving Wave' has a random element but boasts an overwhelming stamina efficiency of up to 8, while 'Aqua Shot' and 'Death Scythe+' also show excellent efficiency at 4.66.
08:22 - 09:34
5. 🌟 Rider Training Ecological Passives and Monstie Personality
· For Rider Training's ecological passives, we recommend 'Shura', 'Burning Spirit', and 'Unity'. Details on how to farm these were covered in a previous video, so please refer to it.
· For status bonuses, prioritize attack power and stamina recovery.
· The Monstie's personality was set to 'Stamina Tendency: Aggressive' and 'Skill Tendency: Offensive'.
· However, a 'Passive Offensive' personality is also worth considering. When stamina is depleted from repeatedly using 'Cleaving Wave', using skills like 'Death Scythe' might make it difficult to save stamina for 'Cleaving Wave'.
· For short battles like hunting Flooded monsters, 'Aggressive Offensive' is advantageous as it quickly fills the Kinship Gauge without direct commands. However, for longer battles, changing to 'Passive Offensive' can be a good choice.
09:35 - 11:30
6. ⚔️ Flooded Yian Garuga Hunted in 5 Turns Without Items
· We present a live combat video of hunting a Flooded Yian Garuga in 5 turns without using any items.
· In the first turn, we deal significant damage using 'Cleaving Wave' and a defense-down bottle.
· In the second turn, 'Cleaving Wave' and the Gunlance's 'Torrential Blast' reduce the monster's health by half.
· In the third turn, due to low stamina, we use normal attacks. Although the damage fluctuation of 'Cleaving Wave' meant some bad luck, if not using items, it's better to swap out two Gunlances for a Hammer or similar to use powerful skills like 'Spin Meteor'.
· In the fourth and fifth turns, we appropriately use 'Cleaving Wave' and normal attacks, ultimately succeeding in defeating it in 5 turns.
· This build can reliably defeat Flooded monsters in 5-6 turns, making it very useful for repeated Flooded monster hunts.
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