Improved frost nova has traded places with piercing ice within the tree and has been redesigned 强化霜冻新星和刺骨寒冰位置交换，并被从新设计。
2.
The frost talent shatter will still remain with prerequisite of improved frost nova but now will require 3 points in the talent instead of the original 2 冰系天赋碎裂仍然需要强化霜冻新星作为前置天赋但是现在需要3点，取代原来的2点。
