Ninjitsu
Ninjitsu is the expansion-era (Samurai Empire) ninja skill. The prose is community-derived from ServUO and general UO mechanics (no uorenaissance.com entry) pending field verification; the stats table is source-verified against ServUO. Behavior is expansion-specific — see magic schools.
What it does
Section titled “What it does”Ninjitsu grants a toolkit of stealthy combat and mobility tricks: Animal Form (turn into a creature for speed or disguise), Mirror Image (decoy clones), Death Strike, Surprise Attack and Backstab (hit-from-hiding bonuses), plus weapon specials like Focus Attack and Ki Attack. Smoke Bombs (crafted consumables, not a spellbook ability) give an instant hide and round out the kit. It rewards a hit-and-vanish playstyle and leans heavily on Hiding/Stealth.
How to use it
Section titled “How to use it”Activate abilities from the Book of Ninjitsu (most cost mana). Surprise Attack and Backstab require you to strike from hiding (the code checks you are hidden with stealth steps available); Animal Form and Smoke Bombs support the sneak playstyle. See hiding & stealth and advanced combat.
How to train it
Section titled “How to train it”Quick start: an NPC Ninja (or a Ninja trainer in the Tokuno towns) teaches Ninjitsu up to
one-third of its own skill, capped at 42.0 (Scripts/Mobiles/Normal/BaseCreature.cs,
CheckTeach: baseToSet = ourSkill.BaseFixedPoint / 3) — buy to ~30–42 first.
Ninjitsu rises from using its abilities — the cheapest reliable trainer is Animal Form:
- Low skill — shift into Animal Form (and back) and use the cheap abilities repeatedly; it costs only mana, so it’s an easy loop.
- Mid/high skill — weave stealth attacks and forms into combat; harder use holds the gain window, and GGS pays out the slow late points. Some specifics are unverified.
See skill gain and using & training skills.
Mechanics & numbers
Section titled “Mechanics & numbers”| Primary stat | Dexterity |
| Secondary stat | Intelligence |
| Title | Ninja |
| Mastery skill | Yes |
| Gain notes | no stat gain on use (Str +0 / Dex +0 / Int +0) |
Ability implementations live under Scripts/Spells/Ninjitsu/ (e.g. FocusAttack.cs,
AnimalForm.cs). Exact ability numbers are expansion-specific and unverified here.
Related skills & synergies
Section titled “Related skills & synergies”- Hiding + Stealth — required for the strike-from-hiding attacks; the core ninja synergy.
- A weapon skill + Tactics — Ninjitsu layers onto a melee fighter.
- Bushido — the common samurai/ninja hybrid.
See also
Section titled “See also”Banner icon courtesy of uorenaissance.com.