优化：
这套bd是极限火术士，因为和击穿火抗的超魔相比，击穿冰抗的超魔不能击破冰免。学院术士一切能力的选择都要围绕着堆火系法术的cl。
学院术士会给奖励超魔专长所以专长位不那么紧缺，龙血亚种的术士可以拿几次实用超魔法降低超魔代价。
Piercing Cold
[Metamagic]
Your cold spells are so cold that they can damage creatures normally resistant or immune to cold.
Prerequisite
Benefit
You can only apply this metamagic feat to spells with the cold descriptor. Piercing cold spells are so horribly cold that they are capable of damaging creatures normally unharmed by or resistant to cold. Piercing cold spells completely ignore any resistance to cold a creature possesses, bypassing this resistance and dealing damage to the target as if it did not possess any resistance to cold at all. They are still entitled to whatever other defenses the attack allows (such as saving throws and spell resistance).
Creatures normally immune to cold can be damaged by piercing cold spells as well. Piercing cold spells deal half damage to these creatures (or one-quarter on a successful saving throw). For example, Mialee casts a piercing cold cone of cold at a night hag, a creature normally immune to cold. She makes her level check to penetrate the night hag's spell resistance, but the night hag makes her Reflex save against the spell. Mialee rolls the dice, and her cone of cold deals 42 points of cold damage; since the night hag made her save, the damage is halved to 21 points. This damage is then halved again (since the night hag is normally immune to cold), and 10 points of cold damage are actually dealt to the night hag, who is both shocked and enraged at this unexpected turn of events.
Creatures with the cold subtype can tell that a piercing cold spell is colder than normal, but they remain undamaged by the attack.
Creatures with the fire subtype who are damaged by a piercing cold spell take double normal damage instead of the usual +50%.
A piercing cold spell uses up a spell slot one level higher than the spell's actual level.
存在一定程度上的误导。刺骨可以击穿冰免，只不过不能击穿寒系亚种的冰免。
