Here is the full list of all 34 Sorcery trophies - there are 18 bronze, 11 silver, 4 gold and 1 platinum.
Collect all the other trophies in the game
Beat the game without drinking a single health potion
Kill the Nightmare Queen
Killed by Erline
Open every chest in the game
Collect every treasure in the game
Repair the sky
Kill the Forest Guardian
150 kills with ice
150 kills with fire
Kill an enemy with a double ricochet
Research every potion in the game
Find every ingredient in the game
Hit an enemy with arcane, ice, wind, fire, and lightning
Kill 4 sylphs with one lightning bolt
Set 7 enemies on fire at the same time
Kill a fire sylph and an ice sylph with a lightning storm
Pick up 5 spiders with a whirlwind
Cast lightning trap, lightning storm, and lightning bolt simultaneously
Freeze yourself with a reflected ice bolt
Kill the Elf Assassin
Accumulate 20,000 gold
Open 50% of the chests in the game
Execute the fire/wind/arcane combo
Shatter 3 enemies with one hit
Die while you're a rat
Keep an enemy chilled for 20 seconds
Kill the Troll in Ordale
Kill an enemy with shield bash
Kill an enemy that you can't see with curved bolt
Hit an enemy simultaneously with a curved bolt and a straight bolt
Kill the Banshee
Take damage from a reflected arcane bolt
Change every sheep at the tower into a pig