diff --git a/server/src/cryp.rs b/server/src/cryp.rs
index 1851f712..7a782ccf 100755
--- a/server/src/cryp.rs
+++ b/server/src/cryp.rs
@@ -9,7 +9,7 @@ use failure::err_msg;
 
 use account::Account;
 use rpc::{CrypSpawnParams};
-use skill::{Skill, Cooldown, Effect, Cast};
+use skill::{Skill, Cooldown, Effect, Cast, Source};
 use game::{Log};
 
 #[derive(Debug,Clone,Copy,PartialEq,Serialize,Deserialize)]
diff --git a/server/src/skill.rs b/server/src/skill.rs
index a14266b5..e8dd7753 100755
--- a/server/src/skill.rs
+++ b/server/src/skill.rs
@@ -148,13 +148,70 @@ impl Effect {
             _ => panic!("{:?} does not have a mod effect", self),
         }
     }
+
+    pub fn source(&self) -> Source {
+        match self {
+            // physical
+            Effect::Stun => Source::Debuff,
+            Effect::Block => Source::Buff,
+            Effect::Bleed => Source::Debuff,
+            Effect::Leech => Source::Debuff,
+            Effect::Airborne => Source::Buff,
+            Effect::Untouchable => Source::Buff,
+            Effect::Deadly => Source::Buff,
+            Effect::Vulnerable => Source::Debuff,
+            Effect::Fury => Source::Buff,
+            Effect::Evasion => Source::Buff,
+            Effect::Blind => Source::Debuff,
+            Effect::Snare => Source::Debuff,
+
+            Effect::Empower => Source::Buff,
+
+            // magic
+            Effect::Hex => Source::Debuff,
+            Effect::Curse => Source::Debuff,
+            Effect::Banish => Source::Debuff, // todo randomise
+            Effect::Slow => Source::Debuff,
+            Effect::Haste => Source::Buff,
+            Effect::Enslave => Source::Debuff,
+            Effect::Mesmerise => Source::Debuff,
+            Effect::Amplify => Source::Buff,
+            Effect::Silence => Source::Debuff,
+
+            // magic immunity
+            Effect::Shield => Source::Buff,
+
+            // effects over time
+            Effect::Triage => Source::Buff,
+            Effect::Decay => Source::Debuff,
+            Effect::Regen => Source::Buff,
+            Effect::Drain => Source::Debuff,
+
+            Effect::SpeedDrain => Source::Debuff,
+            Effect::SpeedIncrease => Source::Buff,
+        }
+    }
 }
 
+#[derive(Debug,Clone,Copy,PartialEq,Serialize,Deserialize)]
 pub enum Damage {
     Physical,
     Magic,
 }
 
+// #[derive(Debug,Clone,Copy,PartialEq,Serialize,Deserialize)]
+// enum Style {
+//     Offensive,
+//     Defensive,
+// }
+
+#[derive(Debug,Clone,Copy,PartialEq,Serialize,Deserialize)]
+pub enum Source {
+    Buff,
+    Debuff,
+    Stat,
+}
+
 #[derive(Debug,Clone,Copy,PartialEq,Serialize,Deserialize)]
 pub enum Skill {
     Attack,
@@ -217,6 +274,7 @@ pub enum Skill {
     Silence,
     Inquiry,
     Purify,
+    Purge,
     // Precision,
 
     // -----------------
@@ -299,6 +357,7 @@ impl Skill {
             Skill::Silence => Some(2),
             Skill::Inquiry => Some(2),
             Skill::Purify => Some(1),
+            Skill::Purge => Some(1),
 
             // -----------------
             // Chaos
@@ -382,6 +441,7 @@ impl Skill {
             Skill::Silence => Damage::Magic,
             Skill::Inquiry => Damage::Magic,
             Skill::Purify => Damage::Magic,
+            Skill::Purge => Damage::Magic,
 
             // -----------------
             // Chaos
@@ -466,6 +526,7 @@ impl Skill {
             Skill::Silence => 2,
             Skill::Inquiry => 2,
             Skill::Purify => 1,
+            Skill::Purge => 1,
 
             // -----------------
             // Chaos
@@ -542,7 +603,7 @@ impl Skill {
             Skill::TriageTick => triage_tick(cryp, target, log), // hot
             Skill::Throw => throw(cryp, target, log), // no dmg stun, adds vulnerable
             Skill::Charm => panic!("nyi"), // target casts random spell on teammate
-            Skill::Calm => panic!("nyi"), // remove fear, taunt
+            Skill::Calm => panic!("nyi"), // physical fear, taunt removal
             Skill::Rez => panic!("nyi"),
 
             // -----------------
@@ -555,8 +616,8 @@ impl Skill {
             Skill::Drain => drain(cryp, target, log),
             Skill::DrainTick => drain_tick(cryp, target, log), // hot
             Skill::Curse => curse(cryp, target, log),
-            Skill::Plague => panic!("nyi"), // aoe dot
-            Skill::Ruin => panic!("nyi"), // aoe
+            Skill::Plague => panic!("nyi"), // dot that spreads every turn
+            Skill::Ruin => panic!("nyi"), // aoe version of blast
 
             // -----------------
             // Purity
@@ -564,10 +625,11 @@ impl Skill {
             // Skill::Precision => panic!("nyi"),
             Skill::Empower => empower(cryp, target, log), // increased phys dmg
             Skill::Slay => panic!("nyi"), // phys dmg mult by target magic dmg
-            Skill::Shield => panic!("nyi"), // target is immune to magic dmg and fx
+            Skill::Shield => shield(cryp, target, log), // 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
+            Skill::Purify => purify(cryp, target, log), // dispel all debuffs
+            Skill::Purge => purge(cryp, target, log), // dispel all buffs
 
             // -----------------
             // Chaos
@@ -575,7 +637,7 @@ 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"), // target
+            Skill::Taunt => panic!("nyi"), // target forced to attack
             Skill::Pause => panic!("nyi"), // speed slow
 
             // -----------------
@@ -733,20 +795,44 @@ fn drain(cryp: &mut Cryp, target: &mut Cryp, log: &mut Log) {
 }
 
 fn drain_tick(cryp: &mut Cryp, target: &mut Cryp, log: &mut Log) {
-    // damage part
+    // Damage part
     let (damage, _) = target.deal_spell_dmg(cryp.spell_dmg().wrapping_div(2));
-    log.push(format!("{:?} | Drain damage {:?}", target.name, damage));
+    log.push(format!("{:?} | Drain Damage {:?}", target.name, damage));
 
     let (healing, overhealing) = target.heal(damage);
     log.push(format!("{:?} | Drain healing {:?} ({:?} OH)", cryp.name, healing, overhealing));
 }
 
+fn shield(_cryp: &mut Cryp, target: &mut Cryp, log: &mut Log) {
+    let effect = CrypEffect { effect: Effect::Shield, duration: Skill::Shield.duration(), tick: None };
+    target.effects.push(effect);
+    log.push(format!("{:?} < {:?} for {:?}T", target.name, effect.effect, effect.duration));
+}
+
 fn silence(_cryp: &mut Cryp, target: &mut Cryp, log: &mut Log) {
     let effect = CrypEffect { effect: Effect::Silence, duration: Skill::Silence.duration(), tick: None };
     target.effects.push(effect);
     log.push(format!("{:?} < {:?} for {:?}T", target.name, effect.effect, effect.duration));
 }
 
+fn purge(_cryp: &mut Cryp, target: &mut Cryp, log: &mut Log) {
+    for (i, ce) in target.effects.clone().iter_mut().enumerate() {
+        if ce.effect.source() == Source::Buff {
+            target.effects.remove(i);
+            log.push(format!("{:?} < {:?} purged", target.name, ce.effect));
+        }
+    }
+}
+
+fn purify(_cryp: &mut Cryp, target: &mut Cryp, log: &mut Log) {
+    for (i, ce) in target.effects.clone().iter_mut().enumerate() {
+        if ce.effect.source() == Source::Debuff {
+            target.effects.remove(i);
+            log.push(format!("{:?} < {:?} purified", target.name, ce.effect));
+        }
+    }
+}
+
 fn banish(_cryp: &mut Cryp, target: &mut Cryp, log: &mut Log) {
     let effect = CrypEffect { effect: Effect::Banish, duration: Skill::Banish.duration(), tick: None };
     target.effects.push(effect);
@@ -856,6 +942,20 @@ mod tests {
         assert_eq!(x.spell_dmg(), 100);
     }
 
+    #[test]
+    fn purify_test() {
+        let mut x = Cryp::new()
+            .named(&"muji".to_string())
+            .level(8)
+            .create();
+
+        let mut log = vec![];
+        decay(&mut x.clone(), &mut x, &mut log);
+        assert!(x.effects.iter().any(|e| e.effect == Effect::Decay));
+
+        purify(&mut x.clone(), &mut x, &mut log);
+        assert!(!x.effects.iter().any(|e| e.effect == Effect::Decay));
+    }
 }
 
 // #[derive(Debug,Clone,Copy,PartialEq,Serialize,Deserialize)]