Here is the full list of all 29 Magicians & Looters achievements.
Beat the game
Complete the game with Abridged mode off
Defeat all four obstacle courses
Decapitate 100 morg minions
Pop a squidly with Brent's Lunge attack
Find the treasure in the water cavern in the Chasm
Kill a bat, eat the candy
Die once to the Red Warlock
Perform five Falcon Dives without touching the ground
Defeat Looter without using the shield
Get looted by an imp, then get your loot back
Find all of Captain Cuddles' training spots
Kill all the peochs in the Castle Looter Peoch Pit
Finish a morg man with Vienna's Lion Strike
Kill five deathballs with fruit
Defeat Oraskue with only fireballs
Destroy 5 missiles with wisp
Get squished by a door or masher
Hunt and kill the most dangerous game
Destroy 5 missiles by hitting them
Kill 3 of these guys
Kill the Golem without killing any of the eyelors
Beat the game with 100% items and 100% map
Stay in blitz for 60 seconds straight
Discover the Hidden Shop
Have five wisps with you at one time
Run as fast as the game allows
Beat the game in under two hours
Beat the game a second time