Here is the full list of all 31 Magicka: Wizards of the Square Tablet achievements.
Multiplayer: Have the green wizard never die or cast a single spell and still win the stage.
Let a Seagal die from Oil.
Multiplayer: Telefrag a fellow wizard.
Multiplayer: Kill a fellow wizard.
Multiplayer: Die at least twice as often as all your teammates combined.
Multiplayer: Have a team of four wizards all die.
Multiplayer: Deal at least 800 damage to a fellow wizard in one attack.
Multiplayer: Have the yellow wizard die first in a stage's very first encounter.
Get blown to bits and have your staff get stuck in the ground pole-first.
Defeat Grampa the Gray.
Suffer at least 1000 damage in one blow.
Suffer at least 5000 damage in one blow.
Defeat Helsdottir.
Unlock this achievement to unlock this achievement.
Get killed by your own staff.
Defeat the Dark Young.
Get decapitated.
Defeat Disa.
Defeat the Elk Dragon.
Defeat the Big Friendly Crab.
Kill a Land Shark with a Thunder bolt.
Explode so hard that your staff makes 3 full rotations before landing.
Blow yourself up with a regular self-targeted spell.
Suffer at least 500 damage in one blow.
Die from a stage hazard.
Imbue a personal barrier with three different elements.
Cast Supernova.
Win a stage by blowing every single enemy to bits.
Win a stage without ever using the Life element.
Purchase a familiar.
Gib three enemies in one second.