Hit Die: d8.
To qualify to become an assassin, a character must fulfill all the following criteria.
Skills: Disguise 2 ranks, Hide 5 ranks, Move Silently 5 ranks.
The assassin's class skills (and the key ability for each skill) are Acrobatics (Dex), Bluff (Cha), Climb (Str), Diplomacy (Cha), Disable Device (Int), Disguise (Cha), Escape Artist (Dex), Intimidate (Cha), Linguistics (Int), Perception (Wis), Sense Motive (Wis), Sleight of Hand (Dex), Spellcraft (Int), Stealth (Dex), Swim (Str), and Use Magic Device (Cha).
Skill Points at Each Level: 4 + Int modifier
All of the following are Class Features of the assassin prestige class.
Weapon and Armor Proficiency: Assassins are proficient with the crossbow (hand, light, or heavy), dagger (any type), dart, rapier, sap, shortbow (normal and composite), and short sword. Assassins are proficient with light armor but not with shields.
Death Attack (Ex): If an assassin studies his victim for 3 rounds and then makes a sneak attack with a melee weapon that successfully deals damage, the sneak attack has the additional effect of possibly either paralyzing or killing the target (assassin’s choice). While studying the victim, the assassin can undertake other actions so long as his attention stays focused on the target and the target does not detect the assassin or recognize the assassin as an enemy. If the victim of such an attack fails a Fortitude save (DC 10 + the assassin’s class level + the assassin’s Int modifier) against the kill effect, she dies. If the saving throw fails against the paralysis effect, the victim is rendered helpless and unable to act for 1d6 rounds plus 1 round per level of the assassin. If the victim’s saving throw succeeds, the attack is just a normal sneak attack. Once the assassin has completed the 3 rounds of study, he must make the death attack within the next 3 rounds.
If a death attack is attempted and fails (the victim makes her save) or if the assassin does not launch the attack within 3 rounds of completing the study, 3 new rounds of study are required before he can attempt another death attack.
Poison Use (Ex): Assassins are trained in the use of poison and never risk accidentally poisoning themselves when applying poison to a blade.
Sneak Attack (Ex): This is exactly like the rogue ability of the same name. The extra damage dealt increases by +1d6 every other level (1st, 3rd, 5th, 7th, and 9th). If an assassin gets a sneak attack bonus from another source the bonuses on damage stack.
Spells: An assassin learns to cast a variety of arcane spells useful to their line of work. When you gain your first level of assassin you must choose whether you shall cast spells as an assassin or continue progressing an existing arcane casting progression (such as bard, sorcerer, or wizard). Once you have made this choice it cannot be changed.
Assassin Casting: Beginning at 1st level, an assassin gains the ability to cast a number of arcane spells. To cast a spell, an assassin must have an Intelligence score of at least 10 + the spell’s level, so an assassin with an Intelligence of 10 or lower cannot cast these spells. Assassin bonus spells are based on Intelligence, and saving throws against these spells have a DC of 10 + spell level + the assassin’s Intelligence bonus. When the assassin gets 0 spells per day of a given spell level he gains only the bonus spells he would be entitled to based on his Intelligence score for that spell level.
The assassin’s spell list appears below. An assassin casts spells just as a bard does.
Upon reaching 6th level, at every even-numbered level after that (8th and 10th), an assassin can choose to learn a new spell in place of one he already knows. The new spell’s level must be the same as that of the spell being exchanged, and it must be at least two levels lower than the highest-level assassin spell the assassin can cast. An assassin may swap only a single spell at any given level, and must choose whether or not to swap the spell at the same time that he gains new spells known for that level.
Continued Casting: At 2nd level and every 2 levels thereafter, the assassin gains new spells per day as if he had also gained a level in a arcane spellcasting class he belonged to before adding the prestige class. He does not, however, gain other benefits a character of that class would have gained, except for additional spells per day, spells known (if he is a spontaneous spellcaster), and an increased effective level of spellcasting. If a character had more than one spellcasting class before becoming an assassin, he must decide to which class he adds the new level for purposes of determining spells per day. The assassin adds the spells from the assassin spell list to the spell list of the chosen class.
Exploit Weakness (Ex): At 2nd level, any condition that would allow the assassin to sneak attack an opponent (such as the target being denied Dexterity to AC, or flanking the target) also grants the assassin a +1 to attack and weapon damage rolls against that target. At 4th level and every two levels thereafter (6th, 8th, and 10th) this bonus increases by +1 to a maximum of +5 at 10th level.
Hidden Weapons (Ex): At 2nd level, an assassin becomes a master at hiding weapons on his body. He adds his assassin level to all Sleight of Hand skill checks made to prevent others from noticing them.
Quiet Death (Ex): At 4th level, whenever an assassin kills a creature using his death attack during a surprise round, he can also make a Stealth check, opposed by Perception checks of those in the vicinity to prevent them from identifying him as the assailant. If successful, those nearby might not even notice that the target is dead for a few moments, allowing the assassin to avoid detection.
True Death (Su): At 6th level, anyone slain by an assassin's death attack becomes more difficult to bring back from the dead. Spellcasters attempting to bring a creature back from the dead using raise dead or similar magic must make a caster level check with a DC equal to 15 + the assassin's level or the spell fails and the material component is wasted. Casting remove curse the round before attempting to bring the creature back from the dead negates this chance. The DC of the remove curse is 10 + the assassin's level.
Night Eyes (Ex): At 7th level, an assassin can sneak attack creatures with concealment (but not total concealment). The assassin however does not ignore the miss chance for the concealment.
Hide in Plain Sight (Su): At 8th level, an assassin can use the Stealth skill even while being observed. As long as he is within 10 feet of some sort of shadow, an assassin can hide himself from view in the open without having anything to actually hide behind. He cannot, however, hide in his own shadow.
Swift Death (Ex): At 9th level, once per day, an assassin can make a death attack against a foe without studying the foe beforehand. He must still sneak attack his foe using a melee weapon that deals damage.
Sightless Eyes (Ex): At 10th level, an assassin can sneak attack creatures with total concealment. The assassin however does not ignore the miss chance for the concealment.
Assassin Spell List
Assassins choose their spells from the following list:
1st Level: disguise self, detect poison, feather fall, ghost sound, jump, obscuring mist, sleep, true strike.
2nd Level: alter self, cat’s grace, darkness, fox’s cunning, illusory script, invisibility, pass without trace, spider climb, undetectable alignment.
3rd Level: deep slumber, deeper darkness, false life, magic circle against good, misdirection, nondetection.
4th Level: clairaudience/clairvoyance, dimension door, freedom of movement, glibness, greater invisibility, locate creature, modify memory, poison.