what about a skill where you can absorb the spirital energy from your enemies? (like the "spirit bomb " in dragonball z.) when a mage activates this skill, every enemy will loose life energie.
you couls do the same the same with mana. but instead of using mana of your wizzard, it uses stamina...
I'm thinking that the mana drain spell could have the following required levels: 16,22,28,34,40 and the following magic costs, respectively: 7,9,11,13,15.
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