Magicka

Magicka is an action-adventure video game based on Norse mythology developed by Arrowhead Game Studios. It was released on Microsoft Windows.

Plot
In Magicka four mages from a sacred order fight against an evil sorcerer and his creations.

Book-Spells
Where to find spells and how to use them.

Useful Element Combinations
The Thunderbolt elements make a powerful beam; adding a shield makes powerful bombs. Charge up your sword or use it as a beam.

Spamming earth+fire is a good way to take care of weak groups of monsters.

Other Useful Hints
Cast Shield on yourself. Healing when shielded recharges the sheild, not your health. The shield also allows you to stay dry in wet areas (rain, rivers) which makes casting spells involving lightning much easier.

Grab the Staff of Life (looks like a plant) from next to the "Rat" woman in Chapter 2 -- its healing aura is very helpful.