Blight League Tower Defense and Mechanics Guide PoE 3.8

Hey there exile! The last thing we probably expected was to get a tower defense league in PoE. And I gotta admit, it’s surprisingly fun. There’s a problem many players have though – the towers themselves are too poorly explained, having only minimal descriptions. And things like “LOW” and “HIGH” damage don’t really say much. So here’s a detailed list of towers. Keep in mind, even though part of the data was datamined by PoEDB, it’s incomplete and can be inconsistent.

Blight tower list and stat breakdown

Chilling Tower Icon Path of Exile

Chilling Tower Mk I

Level 1: 2.2 Base Cold DPS

Level 82:  2060 Base Cold DPS

Radius: 35

Activation: attaches to 6 enemies

Effect: Chills while active

Duration: 4 seconds

Chill Effect: 20% reduced action speed

Empowering (MKI/MKII/MKIII):

Duration increase to 5/7/7 seconds

Targeting increase to 7/9/11 enemies

Chilling Tower Icon Path of Exile

Chilling Tower Mk II

Level 1: 8.1 Base Cold DPS

Level 82:  7725 Base Cold DPS

Radius: 35

Activation: attaches to 8 enemies

Effect: Chills while active

Duration: 5 seconds

Chill Effect: 35% reduced action speed

Empowering (MKI/MKII/MKIII):

Duration increase to 6/7/7 seconds

Targeting increase to 9/11/13 enemies

Chilling Tower Icon Path of Exile

Chilling Tower Mk III

Level 1: 21.6 Base Cold DPS

Level 82:  20600.3 Base Cold DPS

Radius: 35

Activation: attaches to 10 enemies

Effect: Chills while active

Duration: 6 seconds

Chill Effect: 50% reduced action speed

Empowering (MKI/MKII/MKIII):

Duration increase to 7/7/7 seconds

Targeting increase to 11/13/15 enemies

Freezbolt Tower Icon Path of Exile

Freezebolt Tower

Level 1: 233.1 – 349.7 Cold damage

Level 82: 222K – 333K Cold damage

Radius: 75

Activation: Fires 1 projectile

Effect: Pierces

Empowering (MKI/MKII/MKIII):

Projectile count increased to 3/4/5

Glacial Cage Tower

Level 1: Deals no damage

Level 82: Deals no damage

Radius: 60

Activation: Casts Frost Wall

Duration: 3 seconds

Empowering (MKI/MKII/MKIII):

Increases activation frequency by ???/???/???%

Fireball Tower Icon Path of Exile

Fireball Tower Mk I

Level 1: 62.16 – 93.25 Fire damage

Level 82:  59329 – 88993 Fire damage

Radius: 45

Activation: Fires 1 projectile

Effect: None (?)

Empowering (MKI/MKII/MKIII):

Increases activation frequency by ???/???/???%

Fireball Tower Icon Path of Exile

Fireball Tower Mk II

Level 1: 93.25 – 139.9 Fire damage

Level 82:  88993 – 133490 Fire damage

Radius: 60

Activation: Fires 3 projectiles

Effect: None (?)

Empowering (MKI/MKII/MKIII):

Increases activation frequency by ???/???/???%

Fireball Tower Icon Path of Exile

Fireball Tower Mk III

Level 1: 124.3 – 186.5 Fire damage

Level 82: 118658 – 177986 Fire damage

Radius: 75

Activation: Fires 5 projectiles

Effect: None (?)

Empowering (MKI/MKII/MKIII):

Increases activation frequency by ???/???/???%

Flamethrower Tower

Level 1: 10.88 – 16.32 Fire dmg / 0.2s

Level 82: 10383 – 15574 Fire dmg / 0.2s

Radius: 45

Activation: Channels 1 projectile

Empowering (MKI/MKII/MKIII):

Increases activation frequency by ???/???/???%

Meteor Tower Icon Path of Exile

Meteor Tower

Level 1: 466.2 – 699.3 Fire damage

Level 82: 445k – 669K Fire damage

Radius: 100

Activation: Casts a Meteor

Empowering (MKI/MKII/MKIII):

Increases activation frequency by ???/???/???%

Shock Nova Tower Icon Path of Exile

Shock Nova Tower Mk I

Level 1: 4.857 – 14.57 Lightning damage

Level 82:  4635 – 13905 Lightning dmg

Radius: 20

Activation: AoE damage around itself

Effects: Creates Shocked Ground

10% chance to Shock with damage

Empowering (MKI/MKII/MKIII):

20/30/40% increased effect of Shock

25/30/35% increased effect of Shocked Ground

Shock Nova Tower Icon Path of Exile

Shock Nova Tower Mk II

Level 1: 7.77 – 23.31 Lightning damage

Level 82:  7416 – 22248 Lightning dmg

Radius: 25

Activation: AoE damage around itself

Effects: Creates Shocked Ground

20% chance to Shock with damage

Empowering (MKI/MKII/MKIII):

20/30/40% increased effect of Shock

25/30/35% increased effect of Shocked Ground

Shock Nova Tower Icon Path of Exile

Shock Nova Tower Mk III

Level 1: 10.68 – 32.05 Lightning damage

Level 82:  10197 – 30591 Lightning dmg

Radius: 30

Activation: AoE damage around itself

Effects: Creates Shocked Ground

30% chance to Shock with damage

Empowering (MKI/MKII/MKIII):

20/30/40% increased effect of Shock

25/30/35% increased effect of Shocked Ground

Arc Tower

Level 1: 48.57 – 145.7 Lightning damage

Level 82: 46K – 139K Lightning damage

Radius: 45

Activation: Fires a chaining projectile

Effect: Chains 6 times

10% chance to Shock

Empowering (MKI/MKII/MKIII):

Chain count increased to 8/10/12

Lightning Storm Tower Icon Path of Exile

Lightning Storm Tower

Level 1: 37.3 to 55.95 Lightning damage

Level 82: 35.6K to 53.4K Lightning dmg

Radius: 45

Activation: AoE impact every 0.2s

Effect: No effect

Empowering (MKI/MKII/MKIII):

Repeat time reduced to 0.17/0.11/0.14s

Seismic Tower Icon Path of Exile

Seismic Tower Mk I

Level 1: 1.243 to 1.865 Physical damage

Level 82:  1187 to 1780 Physical dmg

Radius: 45

Activation: Casts 3 waves per 0.7s

Effect: Always Stuns enemies

Empowering (MKI/MKII/MKIII):

50/100/150% increased Stun duration

Seismic Tower Icon Path of Exile

Seismic Tower Mk II

Level 1: 1.243 to 1.865 Physical damage

Level 82:  1187 to 1780 Physical dmg

Radius: 45

Activation: Casts 3 waves per 0.35s

Effect: Always Stuns enemies

Empowering (MKI/MKII/MKIII):

50/100/150% increased Stun duration

Seismic Tower Icon Path of Exile

Seismic Tower Mk III

Level 1: 1.243 to 1.865 Physical damage

Level 82:  1187 to 1780 Physical dmg

Radius: 45

Activation: Casts 3 waves per 0.25s

Effect: Always Stuns enemies

Empowering (MKI/MKII/MKIII):

50/100/150% increased Stun duration

Stone Gaze Tower Icon Path of Exile

Stonegaze Tower

Level 1: Deals no damage

Level 82: Deals no damage

Radius: 45

Activation: Casts petrify over 2 seconds

Effect: Reduces enemy action speed by 15% every 0.3 seconds to a total of 100% (full 2 seconds)

Petrifies enemy at 2 seconds

Empowering (MKI/MKII/MKIII):

Increases the duration of petrify by ???/???/??? seconds

Increases hits needed to break petrify by ???/???/???

Temporal Tower Icon Path of Exile

Temporal Tower

Level 1: Deals no damage

Level 82: Deals no damage

Radius: 45

Activation: always active

Effect: Reduces enemy action speed by 70% for 4 seconds

Empowering (MKI/MKII/MKIII):

Reduces enemy action speed by 80/90/100%

Summoning Tower Mk I

Level 1: ??? minion health

??? minion damage

Level 82:  ??? minion health

??? minion damage

Radius: 30

Activation: Summons 3 minions

Effect: Blocks enemies

Empowering (MKI/MKII/MKIII):

Minions have 10/20/30% increased movement speed 

Minions have 20/40/60% increased maximum Life

Summoning Tower Mk II

Level 1: ??? minion health

??? minion damage

Level 82:  ??? minion health

??? minion damage

Radius: 30

Activation: Summons 5 minions

Effect: Blocks enemies

Empowering (MKI/MKII/MKIII):

Minions have 10/20/30% increased movement speed 

Minions have 20/40/60% increased maximum life

Summoning Tower Mk III

Level 1: ??? minion health

??? minion damage

Level 82:  ??? minion health

??? minion damage

Radius: 30

Activation: Summons 7 minions

Effect: Blocks enemies

Empowering (MKI/MKII/MKIII):

Minions have 10/20/30% increased movement speed 

Minions have 20/40/60% increased maximum Life

Scout Tower Icon Path of Exile

Scout Tower

Level 1: ??? minion health

??? minion damage

Level 82: ??? minion health

??? minion damage

Radius: 75

Activation: Summons 10 minions

Effect: Ranged minions

Empowering (MKI/MKII/MKIII):

Minions have 20/30/40% increased movement speed

Minions have 20/30/40% increased cast speed

Sentinel Tower Icon Path of Exile

Sentinel Tower

Level 1: ??? minion health

??? minion damage

Level 82: ??? minion health

??? minion damage

Radius: 45

Activation: Summons 1 durable minion

Effect: Blocks and taunts (?) enemies

Empowering (MKI/MKII/MKIII):

Minions have 20/30/40% increased movement speed

Minions have 40/80/120% increased maximum life

Empowering Tower Icon Path of Exile

Empowering Tower Mk I

Level 1: Deals no damage

Level 82: Deals no damage

Radius: 35

Activation: Always active

Effect: Boosts other towers, excluding other Empowering Towers, Smothering Towers, and Imbuing Towers. (see other tower sections for effects)

Doesn’t stack with other Empowering Towers

Empowering Tower Icon Path of Exile

Empowering Tower Mk II

Level 1: Deals no damage

Level 82: Deals no damage

Radius: 45

Activation: Always active

Effect: Boosts other towers, excluding other Empowering Towers, Smothering Towers, and Imbuing Towers. (see other tower sections for effects)

Doesn’t stack with other Empowering Towers

Empowering Tower Icon Path of Exile

Empowering Tower Mk III

Level 1: Deals no damage

Level 82: Deals no damage

Radius: 55

Activation: Always active

Effect: Boosts other towers, excluding other Empowering Towers, Smothering Towers, and Imbuing Towers. (see other tower sections for effects)

Doesn’t stack with other Empowering Towers

Imbuing Tower Icon Path of Exile

Imbuing Tower

Level 1: Deals no damage

Level 82: Deals no damage

Radius: 55

Activation: Always active

Effect: Increases player attack speed and cast speed by 25%

Increases player movement speed by 30%

Stacks with other Imbuing Towers

Smothering Tower Icon Path of Exile

Smothering Tower

Level 1: Deals no damage

Level 82: Deals no damage

Radius: 55

Activation: Always active

Effect: Weakens enemies, causing them to take ???% more damage

What towers to build?

In general, it’s a safe bet to build one of the 5 damaging tower types – Fireball, Chilling, Shock Nova, Seismic, or Summoning tower. That’s purely because damage is king in Path of Exile. The quicker you can kill enemies, the fewer problems you’ll have. You could potentially go for the utility towers, but they’re not as effective if you’re lacking damage in the first place.

After that, you can consider things like your build, synergy, and enemy resistances. For example, if you’re playing a summoner build, there’s a high chance you have multiple auras. These auras will also affect the minions from the Summoning towers, creating synergy. If you’re playing a cold attack build with Hypothermia or Ice Bite Support gems, having Chilling towers will help with your damage output and freezing enemies. Or if you already have a ton of damage, you can boost it even further by building an Imbuing tower or Smothering tower.

As for enemy resistances, there are three resistance sources – map resistances, monster resistances, and Blight portal resistances. The first one you can re-roll if need be and the second one you can ignore. As for Blight portal resistances, read below for an explainer.

What do the symbols on Blight portals mean?

Sometimes you’ll see a symbol on a portal like so:

Blight Tower Defense Portal Icons

It means the monsters coming from those portals are resistant to that type of tower, or rather, damage type. So to gain the most out of your towers, build any tower that’s different from the portal types.

For example, in the screenshot there are 3 cold portals, meaning monsters that are resistant to cold damage and 1 fire portal, meaning monsters resistant to fire damage. So if you build Shock Nova, Seismic, or Summoning Towers, which is Lightning, Physical, and Physical damage respectively, you’ll have an easier time with the Blight encounter. And knowing this helps a ton in Blighted maps!

A thing to note – if a portal has the minion icon, it’s not resistant to any type of damage. It will simply ignore minions and pass right through them, rendering the blocking effect of Summoning towers useless.

Should you upgrade towers or build many of them?

In most cases, upgrading a tower all the way is best. First, fewer but stronger towers can be placed more strategically to make sure they’re attacking at all times. But the more towers you build, the more towers will get placed in out of reach places, hardly doing anything.

Second, the damage values are pretty close across all upgrades. For example, an Arc tower costs 1050 points total, dealing 46K-139K Lightning damage at level 82. But 10 MKI Shock Nova towers cost 1000 points total, theoretically reaching the same 46K-139K Lightning damage range. But that’s only in the ideal case scenario if all your towers are on the main lane. Realistically that will hardly ever happen.

Third, upgraded towers usually have better effects. For example, the Shock Nova tower gets increased range and chance to shock with each upgrade, making the damage more effective and reliable. 

Lastly, there are a few exceptions, however. For example, the Seismic tower. Three MKI Seismic towers for 300 points outdo a MKIII for 550 points in terms of damage effectiveness. You can check out the tower list above for a more detailed breakdown!

Are Empowering towers worth it?

Yes, absolutely. If you build a damaging tower, like the Arc tower, and an Empowering tower MKIII, you effectively double the towers damage for half the price. And while Empowering bonuses differ wildly, they’re worth it in almost any situation.

I need your help!

Thanks for checking out this guide! Most of the info was taken from PoEDB and some of it came from testing out towers in-game. Currently, there are some gaps and possible inaccuracies, so if you’ve got corrections or additions, please let me know in the comments!

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