Default Skilltrees

MyPet 4 ships with 124 default skilltrees arranged as a two-tier "Ascension Ladder". They are ordinary skilltree files; customize or replace them freely.

MyPet 4 replaces the five classic default skilltrees of MyPet 3 (Combat, Farm, PvP, Ride and Utility) with 124 new skilltrees. The old trees were identical for every pet; the new set gives each pet type its own small selection that fits its place in Minecraft's lore. No skilltree in the default set is available to every pet type.

The default skilltrees are content, not a system. They are plain .st.json files built from the same building blocks as any custom skilltree — requirements, levels, inheritance and weights. Nothing about the two-tier "ascension" design is required by the plugin: you can edit any tree, delete the ones you don't want, or replace the entire set with your own flat MyPet-3-style trees. See Using your own design instead.

The Ascension Ladder

A pet climbs the ladder in two steps: it picks a role at level 1 and ascends at level 20.

Tier 1 — Role paths (Level 1)

A fresh pet (one that has no skilltree yet) can pick one of three paths:

Path	Trees	Typical skills
Combat	The pet's lore family - Undead, Arthropod, Illager, Construct, Nether or End - or, for pets without such a family, a temperament tree: Predator, Companion or Rascal	Family-flavored combat, e.g. Wither + Slow for Undead, Poison for Arthropod, Fire + Knockback for Nether
Utility	A Keeper tree matching the pet's habitat (Land, Sky, Aquatic or Amphibious)	Backpack, Pickup, Beacon
Mobility	A Wayfarer tree matching the pet's habitat	Ride, Sprint

Tier 1 trees stop at level 25 and show a notification at level 19 hinting at the coming ascension.

Tier 2 — Ascension (Level 20)

From level 20 on, the pet chooses between exactly two trees:

• ✦ Species signature - a unique tree for the pet's species (90 of them, one per pet type, marked with a glowing icon). It carries the pet from level 20 to 100 and defines what makes that species special.
• Path ascension - a direct continuation of the chosen tier 1 tree (17 of them, one per tier 1 tree, built with Inheritance). This is also the safety net: a custom pet type added by a third-party plugin has no signature tree but can still ascend.

Ascending is free and permanent:

• No switch fee is charged, and ascending works even when ChooseOnce is enabled. Both exemptions are controlled by the MyPet.Skilltree.FreeAscension config option (on by default). Lateral switches between tier 1 trees still pay the normal fee.
• After ascending, the tier 1 trees disappear from the menu and cannot be selected again. The choice between signature and path ascension is final.

Design principles behind the default set

• In-universe. Every tree is named and themed to fit in with Minecraft lore.
• No universal trees. Every tree's eligible pets list is a real subset of the roster.
• Vanilla parity. Stronger vanilla mobs get stronger trees; a Warden's signature outclasses a Chicken's by design.
• One signature per species. Each pet type has exactly one tree that exists only for it; everything else is shared by family or habitat.

How ascension works under the hood

There is no hardcoded ascension mechanic. The ladder is assembled entirely from standard skilltree features:

• Tier 1 trees use the NoSkilltree requirement and MaxLevel: 25.
• Tier 2 trees use RequiredLevel: 20 and a Skilltree requirement listing the tier 1 trees they accept.
• A switch counts as an "ascension" whenever the target tree's Skilltree requirement names the pet's current skilltree - that is exactly what FreeAscension waives the fee for. Your own custom trees get the same behavior if (and only if) they use the same pattern.
• Tier 1 trees carry per-pet-type Weight values, so servers using RandomAssignment see fitting picks (mount species lean toward their Wayfarer tree, hostile mobs toward their combat tree).

If you disable MyPet.Skilltree.PreventLevellingWithout, a pet can level past 25 without ever picking a tree. It is then locked out of the entire default set: tier 1 trees are capped at level 25, and tier 2 trees require a previous skilltree. Keep that option enabled while using the default trees, or raise the tier 1 MaxLevel in your copies.

Using your own design instead

The default trees are copied into plugins/MyPet/skilltrees/ only when that folder is first created. After that, the folder is yours:

• Edit or delete any .st.json file. Deleted files are not re-created; only deleting the whole skilltrees folder triggers a fresh copy of the defaults on the next start.
• Replace the set entirely with your own trees. Single-tier, three-tier, one tree for everything: any structure that Creating Custom Skilltrees can express is fine. The ascension behavior only activates for trees that opt into the Skilltree requirement pattern described above.
• Edit in the browser with the Configurator via /mypet editor.
• Upgrading from MyPet 3? Existing servers are untouched: your old skilltrees folder keeps working as-is, including the five classic trees. They are simply no longer bundled for new installs. See Updating from MyPet 3 to 4.