Frost Wall

"The Bandits drew closer and they were gaining confidence. The first few volleys of Fireballs had been more than enough to drive them away, killing several in the process. They retreated to the underbrush, where they regrouped and planned. Now they advanced again, shields up, safe in their great numbers. The Witch surveyed her opponents, wand resting lightly in hand, waiting for the right moment.

It came soon enough, for the Bandits raised their weapons aloft, and came on with a cry. Their blood lust overcame their caution, and the Witch made her move. She flicked her wand quickly, and at once a great wall of solid ice sprang up in the Bandit's path. They crashed into it full force, and before they could recover, three other towering walls rose around them, locking them in an icy prison. Smiling, the Witch conjured a roaring pillar of fire in the center of the freezing prison, and delighted in the shrieks of her trapped enemies roasting alive."

— Description on the official Path of Exile website

Skill Functions and Interactions

Duration: Higher skill gem levels will improve base wall duration, which can be further modified by "skill duration" passives and supports.

Permeability: Players, monsters and most projectiles can not pass through a frost wall. There are some exceptions: teleporting and leaping skills, and projectiles that pierce can pass through a Frost Wall. Frost Walls are Impermeable to all other movement and projectiles, even if they are originated by the caster.

On hit effects: Projectiles that trigger an effect everytime they hit something, like lightning arrow, trigger their effects everytime they hit an ice wall segment as well. Pierce can be used to trigger the effects multiple times.

Invincible: Frost Walls cannot be destroyed by any amount of damage.

Charges: When frost wall is struck by Power Siphon It has a chance to generate a Power Charge. For this to occur, Power Siphon must hit the frost wall a few moments before the wall's duration expires. If timed correctly Power Siphon counts as dealing the killing blow, and generates a power charge, despite the fact that Frost Wall is invincible.

Gem level progression

Template:GemLevelTable |- ! 1 | 19 || 48 || 20 || 1.60 || 20 || 4–6 || 81,983 |- ! 2 | 23 || 56 || 23 || 1.60 || 20 || 5–7 || 63,765 |- ! 3 | 25 || 60 || 24 || 1.70 || 21 || 5–8 || 135,415 |- ! 4 | 28 || 67 || 26 || 1.80 || 21 || 6–9 || 199,345 |- ! 5 | 31 || 73 || 28 || 1.80 || 22 || 7–10 || 285,815 |- ! 6 | 34 || 79 || 30 || 1.90 || 22 || 8–12 || 401,344 |- ! 7 | 37 || 85 || 32 || 1.90 || 23 || 9–13 || 554,379 |- ! 8 | 40 || 92 || 34 || 2.00 || 23 || 10–15 || 755,049 |- ! 9 | 43 || 98 || 36 || 2.10 || 24 || 11–16 || 1,016,533 |- ! 10 | 46 || 104 || 37 || 2.10 || 24 || 12–18 || 1,355,511 |- ! 11 | 49 || 111 || 39 || 2.20 || 25 || 13–20 || 1,791,769 |- ! 12 | 52 || 117 || 41 || 2.30 || 25 || 15–22 || 1,498,138 |- ! 13 | 54 || 121 || 42 || 2.30 || 26 || 16–23 || 1,790,934 |- ! 14 | 56 || 125 || 43 || 2.40 || 26 || 17–25 || 3,351,223 |- ! 15 | 58 || 130 || 43 || 2.40 || 27 || 18–26 || 9,922,564 |- ! 16 | 60 || 134 || 44 || 2.50 || 27 || 19–28 || 21,318,990 |- ! 17 | 62 || 138 || 44 || 2.60 || 28 || 20–30 || 50,639,372 |- ! 18 | 64 || 142 || 45 || 2.60 || 28 || 21–32 || 89,968,595 |- ! 19 | 66 || 146 || 46 || 2.70 || 29 || 22–33 || 146,938,899 |- ! 20 | 68 || 151 || 46 || 2.80 || 30 || 24–35 || class="table-na" style="text-align: center; " | N/A |- ! 21 | 68 || 151 || 47 || 2.80 || 31 || 25–38 || class="table-na" style="text-align: center; " | N/A |- ! 22 | 68 || 151 || 48 || 2.90 || 32 || 26–40 || class="table-na" style="text-align: center; " | N/A |- ! 23 | 68 || 151 || 48 || 2.90 || 33 || 28–42 || class="table-na" style="text-align: center; " | N/A |- ! 24 | 68 || 151 || 49 || 3.00 || 34 || 30–44 || class="table-na" style="text-align: center; " | N/A |- ! 25 | 68 || 151 || 50 || 3.10 || 35 || 31–47 || class="table-na" style="text-align: center; " | N/A |- ! 26 | 68 || 151 || 50 || 3.10 || 36 || 33–49 || class="table-na" style="text-align: center; " | N/A |- ! 27 | 68 || 151 || 51 || 3.20 || 37 || 35–52 || class="table-na" style="text-align: center; " | N/A |- ! 28 | 68 || 151 || 52 || 3.30 || 38 || 37–55 || class="table-na" style="text-align: center; " | N/A |- ! 29 | 68 || 151 || 52 || 3.30 || 39 || 39–58 || class="table-na" style="text-align: center; " | N/A |- ! 30 | 68 || 151 || 53 || 3.40 || 40 || 41–61 || class="table-na" style="text-align: center; " | N/A |}

Version history

Version	Changes
0.10.0g	Fixed a bug where Frost Wall could push around immobile objects.
0.9.12	Frost Wall can't be used through walls anymore.
0.9.4	Fixed a bug where Frost Wall could damage non-hostile bandit leaders.
0.9.2	Fixed a crash with Frost Wall.