diff --git a/libs/demonhunter.php b/libs/demonhunter.php
index 28dfe2a..a58a6a8 100644
--- a/libs/demonhunter.php
+++ b/libs/demonhunter.php
@@ -1,7 +1,7 @@
 <?php
 class DemonHunter extends DiabloClass { 
-  function __construct($stats) {
-    parent::__construct($stats);
+  function __construct($stats, $type) {
+    parent::__construct($stats, $type);
   }
   
   function EHPScore() {
@@ -49,4 +49,47 @@ class DemonHunter extends DiabloClass {
       $this->stats->getStat('+Hatred Regenerated per Second') * 2 +
       $this->stats->getStat('+Discipline Regenerated per Second') * 15) / 100;
   }
+
+  protected 
+    function calculateEHP() {
+      if($this->type == 'pvp') {
+        $ar_mod = 300;$armor_mod = 3000;$inherent_red = .35;$incoming_attack = 250000;
+        $net_mod = .50; // no idea what this is for
+      } else {
+        $ar_mod = 315;$armor_mod = 3150;$inherent_red = .30;$incoming_attack = 100000;
+        $net_mod = .75; // no idea what this is for
+      }
+
+      $block_amount = 4206;
+      $ar_red = $this->stats->getStat('Resistance') / 
+        ($this->stats->getStat('Resistance') + $ar_mod);
+      $armor_red = $this->stats->getStat('Armor') / 
+        ($this->stats->getStat('Armor') + $armor_mod);
+
+      $total_red = (1 - $ar_red) * (1 - $armor_red) * (1 - $inherent_red);
+      $raw_ehp = $this->stats->getStat('Life') / $total_red;
+
+      $net = $incoming_attack * $total_red;
+
+      $after_block = $net * (1 - $this->stats->getStat('Block Chance')) + ($net - $block_amount)
+        * $this->stats->getStat('Block Chance');
+
+      $new_mit = $after_block / $incoming_attack;
+
+      $raw_no_dodge = $this->stats->getStat('Life') / $new_mit;
+
+      if($this->type == 'pvp') {
+        $net_no_dodge = ($raw_no_dodge - $raw_ehp) * .75 + $raw_ehp;
+      } else {
+        $net_no_dodge = $raw_no_dodge;
+      }
+
+      $raw_ehp_dodge = $raw_no_dodge / (1 - $this->stats->getStat('Dodge Chance'));
+      $net_ehp_dodge = ($raw_ehp_dodge - $net_no_dodge) * $net_mod + $net_no_dodge;
+
+      $final_ehp = $net_ehp_dodge * (1 + ($this->stats->getStat('Melee Damage Reduction')
+        + $this->stats->getStat('Missile Damage Reduction')) / 2);
+
+      $this->stats->stats['EHP Unbuffed'] = $final_ehp;
+    }
 }
\ No newline at end of file