[Devil_Dante]

thanks for reply

for reliable i meant that you can rely more on that and their utility, but yes, price is what i was talking about.

I thought about using that (using the penalty as a multiplier).
My wizard's player yesterday was trying to cast a wall to divide a group of enemies: 3 of them were already in melee, while other 3 foes were coming. In the end, he could chose to cast a "big" harmless wall, or a small dangerous wall. He chose to cast another spell