Ice Block
Encases you in a block of ice, protecting you from all attacks and damage for 10 sec, but during that time you cannot attack, move, or cast spells. While inside Ice Block, you heal for 40% of your maximum health over the duration. Causes Hypothermia, preventing you from recasting Ice Block for 30 sec.
Tree position
In the Arcane Mage talent tree, Ice Block sits in the Mage class talents, row 2 of 10. It is a single-point node.
Connected above
The tree draws a line into Ice Block from Prismatic Barrier.
Prismatic BarrierShields you with an arcane force, absorbing damage and reducing magic damage taken by 15% for 1 min. The duration of harmful Magic effects against you is reduced by 25%.
Connected below
Ice Block leads on to Winter's Protection and Frost Conditioning.

Frost ConditioningHypothermia's duration is reduced by 10 sec.
Same row
Also on this row: Alter Time.
Alter TimeAlters the fabric of time, returning you to your current location and health when cast a second time, or after. Effect negated by long distance or death.
Talent trees
Ice Block is in the talent tree of 3 specializations. Mage: Arcane (DPS), Fire (DPS), Frost (DPS).
Ice Block Changes by patch
Tracked changes to this talent between game data builds, newest first.
- First tracked in the game data (patch 12.1.0)