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