The logic here is pretty simple: stack as many dice and attacks as possible. Nothing accomplishes this quite like good old Motherless Vivisectionist (especially given the relatively high INT requirement for the skill gain). Good offense, good defense, synergistic spell-lists, 15d6 sneak, and enough feats to fit in the essentials. Beast Shape is taken to infuse party animal companions, because alchemists can.
Other Pathfinder Wrath of the Righteous Guides:
Go with the staff for quite a while, since Flurry will be better than +1 from the focus and switch to a falchion once you have Improved Critical. You also probably want someone with Magic Fang so your natural attacks actually hit things.
Baked Trickster Build
Role Tank/Damage dealer Race Tiefling (Motherless) Deity Any Alignment Any Lawful† Background Pickpocket†† Skills Athletics, Religion, World, Mobility 18, Perception 1, Stealth 1
† Doesn’t matter past Level 1.
Stats
STR DEX CON INT WIS CHA 18 > 22 15 > 16 (L4) 12 12 16 7
Final Build
Monk (Traditional) Alchemist (Vivisectionist) Slayer (Arcane Enforcer) 1 16 3
Levelling Guide
Level Take 1 Monk – Dodge // Crane Style 2 Alchemist 3 Alchemist – Accomplished Sneak Attacker // Feral Mutagen 4 Alchemist 5 Slayer†- Outflank // Armored Mask 6 Alchemist – Weapon Focus: Scythe† 7 Alchemist – Dazzling Display 8 Alchemist – Feral Wings 9 Alchemist – Shatter Defenses 10 Alchemist – Infusion 11 Alchemist – Alchemist – Skill Focus: Athletics 12 Alchemist – Crippling Strike 13 Alchemist – Improved Critical: Scythe†† 14 Alchemist – Greater Mutagen 15 Slayer – Opportunist // Improved Improved Critical 16 Alchemist 17 Alchemist – Combat Reflexes // Improved Improved Improved Critical 18 Alchemist 19 Alchemist – Grand Mutagen // Improved Improved Improved Improved Critical 20 Slayer
†† Or Falchion.
Spell Priority
Level Spells 1 Shield, Enlarge Person, Cure Light 2 Barkskin, Restoration (Lesser), Cure Moderate Wounds, Cat’s Grace, Bull’s Strength 3 Haste, Resist Energy (Communal), Delay Poison (Communal), Thorn Body 4 Greater Invisibility, Echolocation, Restoration, Cure Critical, Death Ward 5 Beast Shape III, Spell Resistance 6 Beast Shape IV, Legendary, Heal, Transformation, True Seeing
Trickster Spell Priority
Level Spells 1 Vanish, Feather Step 2 Mirror Image, Chameleon Stride, Cat’s Grace, Invisibility 3 Glorious Beard, Summon Medium Beer Elemental 4 Greater Invisiility, Shadow Conjuration, Summon Large Beer Elemental 5 Microscopic Proportions, Summon Greater Beer Elemental. Rain of Halberds 6 Summon Perpetually Annoyed Wizard 7 Trick Fate, Ray of Halberds
Mythic Path
Level Feat 1 Close to the Abyss // Thundering Blows 2 Destiny Beyond Birth 3 Archmage Armor 4 Improved Critical (Mythic) 5 Abundant Casting 6 Extra Mythic Ability: Unrelenting Assault 7 Leading Strike 8 Flawless Attacks 9 Improved Abundant Casting 10 Mythic Sneak Attacker
Trickster Mythic Path
Level Feat 3 Perception Rank 1 4 Arcana Rank 1 // Perception Rank 2 5 Athletics Rank 1 6 Nature Rank 1 // Nature rank 2 7 Religion Rank 1 // Nature Rank 3 8 Mobility Rank 1 // Athletics Rank 2 9 World Rank 1 // Arcana Rank 2 10 Infuse Magic Device // Athletics Rank 3†
† Or Arcana 3
3rd level it says to grab accomplished sneak attack. Sneak attack is a prerequisite and I’m not seeing how that gets picked up.
Alchemist Vivisectionist gets sneak attack as a class feature.