diff --git a/server/WORKLOG.md b/server/WORKLOG.md
index a58f5192..623e73ea 100755
--- a/server/WORKLOG.md
+++ b/server/WORKLOG.md
@@ -17,6 +17,7 @@
 
 * skills
   * offensive -> choose target ✔
+    * ensure cryp untargetable and doesn't resolve when KO
     * calculate
       * hp increase/decrease
       * spell/phys dmg
diff --git a/server/src/cryp.rs b/server/src/cryp.rs
index 815be7fc..7597cd23 100755
--- a/server/src/cryp.rs
+++ b/server/src/cryp.rs
@@ -41,31 +41,31 @@ pub enum Stat {
     Str,
     Agi,
     Int,
-    PhysicalDmg,
-    SpellPower,
+    PhysDmg,
+    SpellDmg,
     Hp,
     Stam,
 }
 
 #[derive(Debug,Clone,Copy,PartialEq,Serialize,Deserialize)]
 pub struct CrypStat {
-    value: u64,
+    base: u64,
     pub stat: Stat,
 }
 
 impl CrypStat {
     pub fn set(&mut self, v: u64) -> &CrypStat {
-        self.value = v;
+        self.base = v;
         self
     }
 
     pub fn reduce(&mut self, amt: u64) -> &mut CrypStat {
-        self.value = self.value.saturating_sub(amt);
+        self.base = self.base.saturating_sub(amt);
         self
     }
 
     pub fn increase(&mut self, amt: u64) -> &mut CrypStat {
-        self.value = self.value.saturating_add(amt);
+        self.base = self.base.saturating_add(amt);
         self
     }
 
@@ -97,10 +97,10 @@ impl Cryp {
         return Cryp {
             id,
             account: id,
-            phys_dmg: CrypStat { value: 0, stat: Stat::Str },
-            spell_dmg: CrypStat { value: 0, stat: Stat::Int },
-            stamina: CrypStat { value: 0, stat: Stat::Stam },
-            hp: CrypStat { value: 0, stat: Stat::Hp },
+            phys_dmg: CrypStat { base: 0, stat: Stat::Str },
+            spell_dmg: CrypStat { base: 0, stat: Stat::Int },
+            stamina: CrypStat { base: 0, stat: Stat::Stam },
+            hp: CrypStat { base: 0, stat: Stat::Hp },
             lvl: 0,
             xp: 0,
             skills: vec![CrypSkill::new(Skill::Attack)],
@@ -159,13 +159,13 @@ impl Cryp {
         self.phys_dmg.set(rng.gen_range(min, max));
         self.spell_dmg.set(rng.gen_range(min, max));
         self.stamina.set(rng.gen_range(min, max));
-        self.hp.set(self.stamina.value);
+        self.hp.set(self.stamina.base);
 
         self
     }
 
     pub fn is_ko(&self) -> bool {
-        self.hp.value == 0
+        self.hp.base == 0
     }
 
     pub fn immune(&self, skill: Skill) -> bool {
@@ -232,25 +232,39 @@ impl Cryp {
     }
 
     pub fn rez(&mut self) -> &mut Cryp {
-        self.hp.set(self.stamina.value);
+        self.hp.set(self.stamina.base);
         self
     }
 
     // Stats
     pub fn phys_dmg(&self) -> u64 {
-        self.phys_dmg.value
+        let phys_dmg_mods = self.effects.iter()
+            .filter(|e| e.effect.modifications().contains(&Stat::PhysDmg))
+            .map(|cryp_effect| cryp_effect.effect)
+            .collect::<Vec<Effect>>();
+        println!("{:?} phys_dmg mods : {:?}", self.name, phys_dmg_mods);
+        let modified_phys_dmg = phys_dmg_mods.iter().fold(self.phys_dmg.base, |acc, m| m.apply(acc));
+        println!("{:?} phys_dmg : {:?}", self.name, modified_phys_dmg);
+        return modified_phys_dmg;
     }
 
     pub fn spell_dmg(&self) -> u64 {
-        self.spell_dmg.value
+        let spell_dmg_mods = self.effects.iter()
+            .filter(|e| e.effect.modifications().contains(&Stat::SpellDmg))
+            .map(|cryp_effect| cryp_effect.effect)
+            .collect::<Vec<Effect>>();
+        println!("{:?} spell_dmg mods : {:?}", self.name, spell_dmg_mods);
+        let modified_spell_dmg = spell_dmg_mods.iter().fold(self.spell_dmg.base, |acc, m| m.apply(acc));
+        println!("{:?} spell_dmg : {:?}", self.name, modified_spell_dmg);
+        return modified_spell_dmg;
     }
 
     pub fn hp(&self) -> u64 {
-        self.hp.value
+        self.hp.base
     }
 
     pub fn stamina(&self) -> u64 {
-        self.stamina.value
+        self.stamina.base
     }
 
     // Stat modifications
@@ -261,6 +275,8 @@ impl Cryp {
             self.stamina()
         ].iter().min().unwrap();
 
+        self.hp.set(new_hp);
+
         let healing = new_hp - current_hp;
         let overhealing = amount - healing;
         return (healing, overhealing);
@@ -268,6 +284,7 @@ impl Cryp {
 
     pub fn deal_phys_dmg(&mut self, amount: u64) -> (u64, u64) {
         self.hp.reduce(amount);
+        println!("{:?} dealt {:?} phys dmg", self.name, amount);
         return (amount, 0);
     }
 
@@ -380,7 +397,7 @@ mod tests {
   //     ,final_str
   //     ,self.name
   //     ,blocked
-  //     ,self.hp.value));
+  //     ,self.hp.base));
 
   //   plr_t.log.push(format!(""));
   //   self
@@ -400,9 +417,9 @@ mod tests {
 
       //   // finally combine with CrypStat
       //   log.push(format!("{:064b}   <- finalised", roll.result));
-      //   roll.result = roll.result & self.value;
+      //   roll.result = roll.result & self.base;
 
-      //   log.push(format!("{:064b} & <- attribute roll", self.value));
+      //   log.push(format!("{:064b} & <- attribute roll", self.base));
       //   log.push(format!("{:064b} = {:?}", roll.result, roll.result));
       //   log.push(format!(""));
 
diff --git a/server/src/skill.rs b/server/src/skill.rs
index 8f2963c5..0f9888e0 100755
--- a/server/src/skill.rs
+++ b/server/src/skill.rs
@@ -2,13 +2,12 @@ use rand::{thread_rng, Rng};
 use uuid::Uuid;
 
 use game::{Log};
-use cryp::{Cryp, CrypEffect};
+use cryp::{Cryp, CrypEffect, Stat};
 
 #[derive(Debug,Clone,Copy,PartialEq,Serialize,Deserialize)]
 pub struct Cast {
     pub id: Uuid,
-    pub skill: Skill,
-    pub source_team_id: Uuid,
+    pub skill: Skill, pub source_team_id: Uuid,
     pub source_cryp_id: Uuid,
     pub target_cryp_id: Option<Uuid>,
     pub target_team_id: Uuid,
@@ -123,6 +122,20 @@ impl Effect {
             _ => false,
         }
     }
+
+    pub fn modifications(&self) -> Vec<Stat> {
+        match self {
+            Effect::Amplify => vec![Stat::SpellDmg],
+            _ => vec![],
+        }
+    }
+
+    pub fn apply(&self, value: u64) -> u64 {
+        match self {
+            Effect::Amplify => value << 1,
+            _ => panic!("{:?} does not have a mod effect", self),
+        }
+    }
 }
 
 pub enum Damage {
@@ -510,7 +523,7 @@ impl Skill {
             Skill::Triage => triage(cryp, target, log), // hot
             Skill::TriageTick => triage_tick(cryp, target, log), // hot
             Skill::Throw => throw(cryp, target, log), // no dmg stun, adds vulnerable
-            Skill::Charm => panic!("nyi"), // cast random spell on teammate
+            Skill::Charm => panic!("nyi"), // target casts random spell on teammate
             Skill::Calm => panic!("nyi"), // remove fear, taunt
             Skill::Rez => panic!("nyi"),
 
@@ -533,10 +546,10 @@ impl Skill {
             // Skill::Precision => panic!("nyi"),
             Skill::Inspire => panic!("nyi"), // increased phys dmg
             Skill::Slay => panic!("nyi"), // phys dmg mult by target magic dmg
-            Skill::Shield => panic!("nyi"),
-            Skill::Silence => silence(cryp, target, log),
-            Skill::Inquiry => panic!("nyi"),
-            Skill::Purify => panic!("nyi"),
+            Skill::Shield => panic!("nyi"), // target is immune to magic dmg and fx
+            Skill::Silence => silence(cryp, target, log), // target cannot cast spells
+            Skill::Inquiry => panic!("nyi"), //
+            Skill::Purify => panic!("nyi"), // dispel all debuffs
 
             // -----------------
             // Chaos
@@ -544,7 +557,7 @@ impl Skill {
             Skill::Banish => banish(cryp, target, log), // TODO prevent all actions
             Skill::Hex => hex(cryp, target, log), // todo prevent casting
             Skill::Fear => panic!("nyi"), // cast random spell on self
-            Skill::Taunt => panic!("nyi"),
+            Skill::Taunt => panic!("nyi"), // target
             Skill::Pause => panic!("nyi"), // speed slow
 
             // -----------------
@@ -567,6 +580,7 @@ impl Skill {
             Skill::Drain => 3,
             Skill::Triage => 3,
 
+            Skill::Amplify => 2,
             Skill::Silence => 3,
 
             Skill::TestBlock => 1,
@@ -785,15 +799,14 @@ mod tests {
         // ensure it doesn't have 0 sd
         x.spell_dmg.set(50);
         y.deal_phys_dmg(5);
-
         let prev_hp = y.hp();
 
         triage(&mut x, &mut y, &mut log);
 
         assert!(y.effects.iter().any(|e| e.effect == Effect::Triage));
 
-        // y.reduce_effect_durations(&mut log);
-        // assert!(y.hp() > prev_hp);
+        triage_tick(&mut x, &mut y, &mut log);
+        assert!(y.hp() > prev_hp);
     }
 
     #[test]
@@ -809,6 +822,22 @@ mod tests {
         assert!(x.effects.iter().any(|e| e.effect == Effect::Silence));
         assert!(!Skill::Decay.castable(&x));
     }
+
+    #[test]
+    fn amplify_test() {
+        let mut x = Cryp::new()
+            .named(&"muji".to_string())
+            .level(8)
+            .create();
+
+        x.spell_dmg.set(50);
+
+        let mut log = vec![];
+        amplify(&mut x.clone(), &mut x, &mut log);
+        assert!(x.effects.iter().any(|e| e.effect == Effect::Amplify));
+        assert_eq!(x.spell_dmg(), 100);
+    }
+
 }
 
 // #[derive(Debug,Clone,Copy,PartialEq,Serialize,Deserialize)]