Higher Magic - "use weaker spells without exhausting his power"

[Zechnophobe]

Originally Posted by Harakiri

Oh, yeah i understand that part - but i thought it also implied that i can cast spells without using mana hence the part of ("use weaker spells without exhausting his power")

By 'his power' they mean 'his ability to cast spells'. So the first spell of the turn must be under the threshold for the level of the skill you have. And if it is, you can cast another one that turn. Mana cost is not effected.