[1.09s] Suggestion: Chances for casting failure and impacts

Variety adds to the fun; I'd like it to be possible for all spellcasters to make a mistake. Higher IQ hopefully means less mistakes, right? Getting hit in the middle of casting should increase chances for mistakes.

So impacts of a casting failure: they could lose {some/all}:  mana, action points, spell takes effect on you, spell affects your army, spell fires on empty square, spell dissipates, etc.