- Stackmon morphinny evolves into Hydrinny using an Evolution Gem and Water.
- Morphinny source: Obtain one from each Egg Trader found in Parks around the map.
- Hydrinny type: Water, with strengths against Fire and Rock.
- Known ability levels: Recovering Hug at level 10 and Daily Creature at level 15.
- Naming note: Hydrinny was called Hydruff during the Playtest.
Stackmon morphinny Evolution Overview
The Stackmon morphinny evolution path leads to Hydrinny, a Water-typed creature with aquatic adaptations and a distinct goat-like design. The confirmed evolution requirement combines an Evolution Gem with Water, making both the item and elemental condition important when planning your collection route.
Hydrinny is described as a large blue goat with webbed fins, a long fish tail, curved horns, and rectangular pupils. Its body is adapted for underwater life, allowing it to glide through rivers and seas, hold its breath for hours, and move comfortably through aquatic environments.
The available reference identifies Morphinny as the pre-evolution but does not provide a separate Morphinny stat block, ability list, drop table, or type profile. For that reason, this guide focuses on confirmed progression details rather than assigning unverified combat values to the base creature.
| Evolution Stage | Creature | Confirmed Type | Requirement |
|---|---|---|---|
| Base form | Morphinny | Not listed | Obtain from an Egg Trader in a Park |
| Evolved form | Hydrinny | Water | Evolution Gem and Water |
| Playtest name | Hydruff | Not applicable | Former name for Hydrinny |
Evolution Requirement
- Evolution Gem
- Water requirement
- Used to evolve Morphinny into Hydrinny
Creature Profile
- Large blue goat
- Webbed fins and fish tail
- Designed for rivers and seas
Collection Source
- Egg Traders
- Located in Parks
- One Morphinny from each trader
Treat Morphinny and Hydrinny as separate collection milestones. Secure the base creature first, then confirm that your Evolution Gem and Water requirement are ready before evolving.
The most reliable reference for this evolution is the Hydrinny page on Stackmon Wiki. It records both the current evolution wording and the former Playtest name, Hydruff.
Where to Find Morphinny
Morphinny can be obtained from Egg Traders found in Parks around the map. The reference states that one Morphinny can be obtained from each Egg Trader, giving collectors a clear starting point for building an evolution plan.
Because the available information does not identify individual Park names, trader refresh behavior, or exact map coordinates, avoid relying on unconfirmed route labels. Instead, search Parks systematically and record each Egg Trader you visit. This approach helps prevent missed traders while keeping your collection notes accurate.
| Location Element | Confirmed Information | Practical Approach |
|---|---|---|
| Main area | Parks around the map | Check every accessible Park |
| NPC source | Egg Traders | Look for traders associated with Eggs |
| Availability | One Morphinny from each Egg Trader | Track completed trades |
| Exact coordinates | Not listed | Record locations during exploration |
| Additional refresh details | Not listed | Confirm in-game before planning repeats |
Locate a Park
Travel to an accessible Park and search the area for an Egg Trader. The available reference does not name specific Parks, so treat each discovered location as part of your personal route.
Identify the Egg Trader
Confirm that the NPC is an Egg Trader before planning the collection attempt. Keep notes on the Park and trader location to reduce duplicate searches.
Obtain Morphinny
Collect the available Morphinny from the Egg Trader. The confirmed information states that one Morphinny can be obtained from each Egg Trader found in Parks.
Prepare the Evolution
Set aside an Evolution Gem and the required Water condition. Do not assume that unrelated items or elemental types substitute for the listed requirement.
Evolve into Hydrinny
Apply the confirmed evolution requirement to transform Morphinny into Hydrinny, then review the resulting creature’s Water typing and known abilities.
Exact Park names, trader coordinates, refresh rules, and repeat limits are not confirmed in the available data. Mark only locations you have verified rather than publishing guessed map details.
A simple route log can include four fields: Park name, Egg Trader found, Morphinny collected, and evolution status. This turns a broad map search into a measurable checklist and makes it easier to identify unfinished areas.
| Route Log Field | Example Entry | Why It Matters |
|---|---|---|
| Park name | Verified Park location | Prevents repeated searches |
| Trader found | Yes or No | Shows whether the area was checked |
| Morphinny collected | Yes or No | Tracks collection progress |
| Evolution status | Unprepared or Evolved | Separates capture from progression |
Hydrinny Type Matchups and Abilities
Hydrinny is a Water-type Stackmon. Its recorded strengths are Fire and Rock, while Plant and Thunder are listed as weaknesses. These matchups provide a straightforward reference for deciding when Hydrinny may be a useful choice and when another creature should cover its vulnerabilities.
The source lists Recovering Hug at level 10 and Daily Creature at level 15. Additional ability entries remain marked as unknown, so they should not be presented as confirmed skills. The drop entry is also recorded as unknown x1, which means the current information does not establish a named reward.
| Category | Hydrinny Information |
|---|---|
| Type | Water |
| Strong against | Fire, Rock |
| Weak against | Plant, Thunder |
| Level 10 ability | Recovering Hug |
| Level 15 ability | Daily Creature |
| Later abilities | Unknown |
| Listed drop | Unknown x1 |
Fire Matchups
Hydrinny is listed as strong against Fire. Consider it when facing Fire-aligned opposition.
Rock Matchups
Rock is another confirmed strength, giving Hydrinny a favorable matchup in that category.
Plant Threat
Plant is listed as a weakness. Prepare a different answer when this matchup creates too much pressure.
Thunder Threat
Thunder is also a weakness. Avoid treating Water typing as universally safe.
The known ability progression should be read as a partial record, not a complete build guide. Recovering Hug is associated with level 10, and Daily Creature is associated with level 15. Since the remaining entries are unknown, collectors should verify later abilities in-game or through future official Stackmon documentation.
Use Hydrinny’s confirmed strengths against Fire and Rock, but keep Plant and Thunder counters available so its Water typing does not become a liability.
The creature’s design also supports its Water identity. Webbed fins, a fish tail, underwater movement, and prolonged breath-holding all reinforce the theme without changing the confirmed type-matchup information.
Evolution Preparation Checklist
Preparing for the Morphinny-to-Hydrinny transition is mainly a collection and verification task. Start by finding Egg Traders in Parks, then confirm that the base creature has been obtained. After that, gather the Evolution Gem and Water requirement before beginning the transformation.
The following checklist separates confirmed requirements from optional organization habits. The collection steps are supported by the available reference; route notes and matchup preparation are recommended practices for keeping your records consistent.
Morphinny Evolution Goals:
- Visit Parks and locate Egg Traders
- Obtain one Morphinny from each verified Egg Trader
- Prepare an Evolution Gem and the Water requirement
- Record the Hydrinny evolution in your collection notes
- Review Fire, Rock, Plant, and Thunder matchups
| Preparation Task | Status to Confirm | Reason |
|---|---|---|
| Park search | Park checked | Egg Traders are located in Parks |
| Trader interaction | Morphinny obtained | One Morphinny is available from each Egg Trader |
| Evolution item | Evolution Gem ready | Required for the confirmed evolution |
| Elemental condition | Water ready | Listed alongside the Evolution Gem |
| Post-evolution review | Hydrinny recorded | Confirms the new Water-type form |
A useful collection record should also preserve the naming history. Hydrinny was originally named Hydruff during the Playtest, before Morphinny’s evolutions were standardized with the “-inny” suffix. This explains why older references, screenshots, or discussions may use Hydruff instead of Hydrinny.
| Name | Context | Current Use |
|---|---|---|
| Morphinny | Base creature | Current pre-evolution name |
| Hydrinny | Current evolved form | Standard name |
| Hydruff | Playtest name | Historical reference |
If you encounter “Hydruff” in older Playtest material, interpret it as Hydrinny’s former name rather than a separate confirmed evolution.
The available data also records shiny and foil card variants for Hydrinny. These variants are useful collection details, but no additional acquisition method or gameplay effect is confirmed here. Keep them separate from the core evolution requirements unless an official source provides more information.
Stackmon morphinny FAQ
Q: What does Stackmon morphinny evolve into?
Morphinny evolves into Hydrinny. The confirmed requirement uses an Evolution Gem and Water.
Q: Where can I obtain Morphinny?
One Morphinny can be obtained from each Egg Trader found in Parks around the map. Specific Park names and coordinates are not listed in the available reference.
Q: What type is Hydrinny?
Hydrinny is a Water-type Stackmon. It is listed as strong against Fire and Rock, and weak against Plant and Thunder.
Q: What abilities are confirmed for Hydrinny?
Recovering Hug is listed at level 10, and Daily Creature is listed at level 15. Other ability entries are currently marked unknown.
Use the current Hydrinny name for new collection records, while noting Hydruff as the historical Playtest name when comparing older material.
Hydrinny is a focused evolution target for collectors who want a Water-type creature with clearly documented Fire and Rock strengths. The most dependable path is to search Parks for Egg Traders, secure Morphinny, prepare the Evolution Gem and Water requirement, and then verify the evolved form’s available abilities.
For ongoing updates, consult the Stackmon Wiki Hydrinny entry and compare any new information against the current in-game documentation. This is especially important for unknown abilities, drop details, trader behavior, and exact Park locations.