Ultima Online Ninjitsu spell list
For official shards · 24 entries · every figure sourced
Every Ninjitsu spell, what it does, the skill it needs and what it costs. The descriptions are uo.com’s own words and the minimum skills come from the school’s published table.
Open this book in the toolkit → — it works out your real chance to cast each one at your own skill, and shows the icons from the game.
| Ability | Min skill | Mana | What it does |
|---|---|---|---|
| Animal Form | 0 | 10 | Transform into an animal, gaining special bonuses. |
| Mirror Image | 20 | 10 | Creates a mirror image of yourself that may absorb damage while you are within 4 steps of it. |
| Focus Attack | 30 | 10 | Increases both your damage and the chance of your weapon's hit properties firing, for one attack. |
| Backstab | 40 | 30 | An attack from stealth, with a damage bonus based on your Ninjitsu and how far you have tracked your target. |
| Shadowjump | 50 | 15 | Teleport while staying hidden - but only if you pass a stealth check where you land. |
| Surprise Attack | 60 | 20 | An attack from stealth that inflicts a defence penalty on your opponent for a short time. |
| Ki Attack | 80 | 25 | Greater damage the further you travel to your opponent from where you began the attack. |
| Death Strike | 85 | 30 | After it lands, if the opponent moves more than five steps or three seconds pass, they take direct damage. |
| Rabbit form | 0 | 10 | Animal Form, taken as a rabbit. Transform into an animal, gaining special bonuses. |
| Rat form | 0 | 10 | Animal Form, taken as a rat. Transform into an animal, gaining special bonuses. |
| Squirrel form | 20 | 10 | Animal Form, taken as a squirrel. Transform into an animal, gaining special bonuses. |
| Cat form | 40 | 10 | Animal Form, taken as a cat. Transform into an animal, gaining special bonuses. |
| Dog form | 40 | 10 | Animal Form, taken as a dog. Transform into an animal, gaining special bonuses. |
| Ferret form | 40 | 10 | Animal Form, taken as a ferret. Transform into an animal, gaining special bonuses. |
| Giant Serpent form | 50 | 10 | Animal Form, taken as a giant serpent. Transform into an animal, gaining special bonuses. |
| Bullfrog form | 50 | 10 | Animal Form, taken as a bullfrog. Transform into an animal, gaining special bonuses. |
| Cu Sidhe form | 60 | 10 | Animal Form, taken as a cu sidhe. Transform into an animal, gaining special bonuses. |
| Ostard form | 70 | 10 | Animal Form, taken as a ostard. Transform into an animal, gaining special bonuses. |
| Llama form | 70 | 10 | Animal Form, taken as a llama. Transform into an animal, gaining special bonuses. |
| Wolf form | 85 | 10 | Animal Form, taken as a wolf. Transform into an animal, gaining special bonuses. |
| Bake-Kitsune form | 85 | 10 | Animal Form, taken as a bake-kitsune. Transform into an animal, gaining special bonuses. |
| Reptalon form | 90 | 10 | Animal Form, taken as a reptalon. Transform into an animal, gaining special bonuses. |
| Unicorn form | 100 | 10 | Animal Form, taken as a unicorn. Transform into an animal, gaining special bonuses. |
| Ki-Rin form | 100 | 10 | Animal Form, taken as a ki-rin. Transform into an animal, gaining special bonuses. |
What the minimum skill actually buys you
The minimum is where a spell becomes castable, not where it becomes reliable. The chance to cast comes down to one line, and it is the same line for every book [!]:
Chance to cast = ( ( Skill − ( Difficulty − ( Casting Focus ÷ 2
) ) ) ÷ Casting Focus )
Casting Focus is 40 for Magery and Necromancy and 50 for the rest [!]. What the two groups do not share is where the minimum sits inside that line: Chivalry, Magery and Necromancy start at 0% and reach 100% one whole Focus above it, while Bushido, Ninjitsu, Mysticism and Spellweaving start at 25% the moment they can cast at all. That is why a Bushido ability feels dependable so much sooner than a spell of the same nominal level — it is not a feeling, it is two different lines. The toolkit works that out for your skill →
Where these come from
uo.com’s Ninjitsu page for the descriptions and the published minimums. uo.com does not publish the chance-to-cast line or the Casting Focus values, so they are unpublished and carry a [!]. Everything here is from uo.com or the game itself; anything uo.com does not publish is marked [!] as unpublished.
The other books
Magery · Necromancy · Chivalry · Bushido · Spellweaving · Mysticism
More from UO Toolkit
- Damage calculator — how a hit is worked out, step by step
- Timers — disarm, sleep and paralyse immunity windows
- Magery spells — all 64, with mana and skill
- Necromancy spells — all 17
- Chivalry spells — all 10, with tithing
- Bushido abilities — all of them
- Spellweaving spells — all 16
- Mysticism spells — all 16
- Clips — player videos from the official shards
- What UO Toolkit does — the whole tool in one page
- The toolkit itself — the template builder and every calculator, free, in the browser
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