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Monster Hunter 3 Ultimate
Strategy Guide

Author(s): James Bowden
First Published: 11-04-2013 / 00:00 GMT
Last Updated: 01-11-2019 / 16:06 GMT
Version: 1.1 (????) 23-01-2020 / 22:52 GMT

Monster Hunter 3 Ultimate Guide

3 months ago · Guide Information

Piscine Wyvern


Family : Piscine Wyvern

Size : Huge

Element : Water


The Plesioth is a large wyvern that can be found near large bodies of water. Despite its huge wings, Plesioth doesn’t appear to fly, but is instead an adept swimmer and a dangerous foe underwater. On land, Plesioth shouldn’t be underestimated either due to its large size and powerful aqua jet.


  • Deserted Island: 10 (Spawn), 11 (Rest)
  • Flooded Forest: 1, 3, 4, 5 (Spawn and Rest), 8


**Weak Spots** **Susceptible**
Belly, Head Poison, Fatigue
**Strong Against** **Weak Against**
Water, Dragon, Ice Thunder, Fire

Part Durability

**Body Part** **Durability** **Effect on Decrease**
Head Low Large Lurch
Neck, Tail Medium Lurch
Body High Large Lurch
Wings (x2) Low Lurch/Knockdown
Legs (x2) High Lurch/Knockdown

Breakable Parts

**Body Part** **How to Break** **Effect of Break**
Head, Fin Decrease Durability Twice Extra Rewards
Wings (x2) Decrease Durability Twice Extra Rewards (Only Once)

Rage Effects

**Attack** **Defence** **Speed**
130% No Change 130%

Key Attacks

Body Slam - The Plesioth turns side on then rams its whole body towards the Hunter. This attack has a massive danger zone.

Slither - The Plesioth lays itself on the ground and then slides forward. This is also used to return to the water, so make sure you’ve rolled away in advance.

Water Stream - The Plesioth opens its fin and lowers its head launching a massive burst of water at the hunter (this is also used from the water if a hunter remains on the shore).

Backflip - A favourite of the Plesioth when it is underwater, it flicks its tail upwards at the Hunter while doing a backflip. You can see this attack early as the Plesioth moves its tail into position, so try and move early.

Recommended Strategy

As with other Wyverns it’s a good idea to get under the Plesioth and attack its legs, but always move away because the Plesioth has a number of attacks that can easily wipe you away from such a position. Simply move close, hit him a few times and then roll away.

As long as you stay in close proximity to the Plesioth then his projectile attacks won’t be a problem, so try and give chase if he moves away and especially if he dives into the water.

When submerged it’s a good idea to stay abreast of the Plesioth, approaching from a side-on angle so that his Water Beams don’t catch you completely off guard. As with all water monsters the Plesioth becomes fast underwater, so movement and cautious attacks become paramount.

Notes :

  • The Pesioth can be fished out of the ocean if you have a Frog.
  • The Plesioth lowers its fins when low on Stamina - use this as a sign to attack.

Guide Information

  • Publisher
  • Platforms
  • Genre
    Action Role-playing
  • Guide Release
    11 April 2013
  • Last Updated
    1 November 2019
  • Guide Author
    James Bowden

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