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