Arrow keys or WASD to move.
Tap Control to attack (as long as you have enough stamina).
Hold space to block (uses stamina).
Press shift while moving to roll (uses stamina).
Tap Alt to use your area-of-effect magic spell.
Hold Z and a direction to use your targeted magic spell.
Press Y to cycle through prompts.

CHEATERS:
Hold tilde and press 1/2/3/4 to save to a slot.
Press 1/2/3/4 to load from that slot.