Most conversations center around systems to resurrect player theft, but those days are long gone. The introduction of stealable items over ten years ago tried to make things more interesting (https://uo.com/wiki/ultima-online-wiki/combat/pvm-player-versus-monster/stealing-from-monsters/), but it's pretty lame. Instead, we can re-imagine the profession as essentially a support class.
Just as we have Ninja and Samurai spell books, we can conceive of a spell book which grants the thief certain abilities. Let's just call this the "Thief Book".
The Thief Book grants four abilities: Pilfer, Siphon, Sabotage, and Ransack. For each ability:
- When active, modifies your next usage of the Stealing skill. Only one can be active at a time (like any Special Move, for example). Stealing deactivates the ability.
- The potency of the effects are modified by Snooping, similar to Evaluating Intelligence for Magery or Focus/Imbuing for Mysticism.
- As the player's Stealing skill increases, the abilities unlock more options, similar to how Animal Form works.
Pilfer modifies your usage of the Stealing skill to steal specific items. Pilfering an item creates a "virtual" version of the item which is consumed immediately by the thief. If the target is a player and that player actually has the item in their possessions, then a certain portion of that item is stolen using existing calculations without needing to snoop through the player's bags and target it specifically. Examples of pilferable items listed below, each unlocking once the thief's Stealing skill reaches a certain threshold:
- Bandages: Applies a virtual bandage. Potency increases with Stealing, Snooping, and Healing.
- Fire horn: Launches a fireball from a virtual fire horn. Potency increases with Stealing, Snooping, and barding skills.
- Refresh Potion. Uses a virtual refresh potion. Potency increases with Stealing, Snooping, and Alchemy.
- Conflagration Potion. Uses a virtual conflagration potion. Potency increases with Stealing, Snooping, and Alchemy.
- Fukiya dart. Fires a virtual dart from a Fukiya. Hit chance increases with Stealing, Snooping, and Ninjitsu.
- Egg bomb. Uses a virtual egg bomb. Hiding success increases with Stealing, Snooping, Ninjitsu, and Hiding.
- Food. Consume a random virtual food item if the player isn't full.
- ...others?
Siphon modifies your usage of the Stealing skill to decrease the target's attributes and apply them to yourself. Stealing an attribute does not go above that attribute's cap. Stealing the same attribute multiple times does not stack the effect. Duration of the effect is modified by Stealing and Snooping. Perhaps only a certain number of attributes can be siphoned at any one time. Stealable attributes are listed below, each unlocking as the thief's Stealing skill increases:
- Str/Dex/Int
- DCI
- HCI
- Luck
- LMC
- SSI
- ...others?
Sabotage modifies your usage of the Stealing skill to decrease the target's skills and apply them to yourself. All non-crafting, non-gathering skills can be sabotaged. Sabotaging skills does not allow you to go over the 120 cap. Stealing the same skill multiple times does not stack the effect. Duration of the effect is modified by Stealing and Snooping. Mechanically, sabotaging a skill is sort of like Discordance except it targets a specific skill and has no consideration for barding difficulty. Perhaps only a certain number skills can be sabotaged at any one time.
Ransack modifies your usage of the Stealing skill to steal specific types of resources. If the target is a player and that player has the type in their possession, then a random resource of that type is stolen using existing calculations without needing to snoop through their belongings. If the target is a monster, quality, quantity, and difficulty increases with the monster's fame level. Each resource type may only be stolen once per monster. Stealing and Snooping increase the effect of ransacking. Stealable resources listed below, each unlocking as the player's Stealing increases:
- Gold.
- Ore. Further modified by Mining.
- Wood. Further modified by Lumberjacking.
- Reagents. Further modified by Alchemy.
- Imbuing ingredients. Further modified by Imbuing.
- ...others?
- Passive: Stealing and snooping range increases 1 tile per mastery level.
- Ability 1: A portion of siphoned attributes and sabotaged skills are applied to party members in a given radius. The portion and area of effect increase with Stealing, Snooping, and mastery level.
- Ability 2: Stealing from a state of hiding increases the potency of all stealing abilities for the next X seconds. Duration increases with Stealing, Snooping, Hiding, Stealth, and mastery levels.
- Ability 3: Pilfered items can be thrown to a target with increased potency. If beneficial acts can be applied to the target, then beneficial items are consumed immediately by the target. Negative items impact the target and flag you accordingly. Range and potency increase with Stealing, Snooping, and mastery level.