Here is the full list of all 52 Mahokenshi achievements.
Win Mission "Pit of Darkness"
Complete Challenge "An Eye for an Eye"
Win Mission "Cradle of Shadows"
Complete Challenge "Purificator"
Win Mission "Scorching Menace"
Complete Challenge "Demon Slayer"
Complete Challenge "The Cult's Nightmare"
Complete Challenge "Not Even Close"
Win Mission "The Goblin Swarm"
Complete Challenge "Master of Speed"
Complete Challenge "Not on my Watch"
Win Mission "The Cult Conspiracy"
Complete Challenge "Without a Hitch"
Complete Challenge "Mortal Dance"
Win Mission "Scholar of Corruption"
Complete Challenge "Aegis of the People"
Complete Challenge "None Shall Pass"
Complete Challenge "Beast executioner"
Win Mission "Ambush"
Complete Challenge "Not a Scratch"
Complete Challenge "Solo Hunter"
Win Mission "The Summoning"
Complete Challenge "No Mercy"
Win Mission "The Enchantress's Dream"
Complete Challenge "Free Spirit"
Win Mission "Invasion"
Complete Challenge "One for the road"
Complete Challenge "In the Pit"
Win Mission "Tainted Lands"
Complete Challenge "Master Sealer"
Complete Challenge "Rural Guardian"
Win Mission "Lord of the Goblins"
Complete Challenge "Goblin Soup"
Complete Challenge "Regulator"
Win Mission "Gateway to the Underworld"
Complete Challenge "The Wall"
Complete Challenge "Methodic Planner"
Win Mission "Rotten Skerry"
Complete Challenge "Cleaner"
Complete Challenge "Safety Measures"
Win Mission "The Shattered Blade"
Complete Challenge "Rushed"
Complete Challenge "Perfectionist"
Win Mission "Waves of Destruction"
Complete Challenge "Lust for Power"
Complete Challenge "Ascetic"
Win Mission "The Enchantress's Nightmare"
Complete Challenge "Extreme Velocity"
Complete Challenge "Risk Taker"
Win Mission "Avatar of Corruption"
Complete Challenge "Damage Dealer"
Complete Challenge "Handicap"