diff --git a/src/common/Common.h b/src/common/Common.h
index ce64a197..38d174ac 100644
--- a/src/common/Common.h
+++ b/src/common/Common.h
@@ -972,6 +972,13 @@ namespace Sapphire::Common
     THREAT
   };
 
+  enum CastType : uint8_t
+  {
+    SingleTarget = 1,
+    CircularAOE = 2,
+    RectangularAOE = 4,
+  };
+
   using PlayerStateFlagList = std::vector< PlayerStateFlag >;
 
 }
diff --git a/src/scripts/CMakeLists.txt b/src/scripts/CMakeLists.txt
index c049a97f..ca247060 100644
--- a/src/scripts/CMakeLists.txt
+++ b/src/scripts/CMakeLists.txt
@@ -45,7 +45,7 @@ foreach(_scriptDir ${children})
                        MODULE 
                          ${SCRIPT_BUILD_FILES} 
                          "${SCRIPT_INCLUDE_FILES}"
-                         "${_scriptDir}/ScriptLoader.cpp" )
+                         "${_scriptDir}/ScriptLoader.cpp" action/darkknight/ActionUnleash3621.cpp action/darkknight/ActionUnleash3621.h)
 
         target_link_libraries( "script_${_name}" world )
 
diff --git a/src/scripts/action/darkknight/ActionHardSlash3617.cpp b/src/scripts/action/darkknight/ActionHardSlash3617.cpp
index 6b582c04..77775263 100644
--- a/src/scripts/action/darkknight/ActionHardSlash3617.cpp
+++ b/src/scripts/action/darkknight/ActionHardSlash3617.cpp
@@ -14,7 +14,10 @@ public:
 
   void onExecute( Sapphire::Action::Action& action ) override
   {
-
+    for( auto& chara : action.getHitActors() )
+    {
+      chara->setHp( chara->getHp() - chara->getMaxHp() * 0.34f );
+    }
   }
 
 };
diff --git a/src/scripts/action/darkknight/ActionUnleash3621.cpp b/src/scripts/action/darkknight/ActionUnleash3621.cpp
new file mode 100644
index 00000000..b5004f66
--- /dev/null
+++ b/src/scripts/action/darkknight/ActionUnleash3621.cpp
@@ -0,0 +1,24 @@
+#include <Script/NativeScriptApi.h>
+#include <ScriptObject.h>
+#include <Actor/Player.h>
+#include <Action/Action.h>
+
+class ActionUnleash3621 :
+  public Sapphire::ScriptAPI::ActionScript
+{
+public:
+  ActionUnleash3621() :
+    Sapphire::ScriptAPI::ActionScript( 3621 )
+  {
+  }
+
+  void onExecute( Sapphire::Action::Action& action ) override
+  {
+    for( auto& chara : action.getHitActors() )
+    {
+      chara->setHp( chara->getHp() - chara->getMaxHp() * 0.34f );
+    }
+  }
+};
+
+EXPOSE_SCRIPT( ActionUnleash3621 );
\ No newline at end of file
diff --git a/src/world/Action/Action.cpp b/src/world/Action/Action.cpp
index 31bcf940..5e06838f 100644
--- a/src/world/Action/Action.cpp
+++ b/src/world/Action/Action.cpp
@@ -17,6 +17,8 @@
 #include "Network/PacketWrappers/ActorControlPacket143.h"
 #include "Network/PacketWrappers/ActorControlPacket144.h"
 #include <Network/PacketWrappers/EffectPacket.h>
+#include <Logging/Logger.h>
+#include <Util/ActorFilter.h>
 
 using namespace Sapphire::Common;
 using namespace Sapphire::Network;
@@ -69,8 +71,17 @@ bool Sapphire::Action::Action::init()
   m_cooldownGroup = m_actionData->cooldownGroup;
   m_range = m_actionData->range;
   m_effectRange = m_actionData->effectRange;
+  m_castType = static_cast< Common::CastType >( m_actionData->castType );
   m_aspect = static_cast< Common::ActionAspect >( m_actionData->aspect );
 
+  // todo: move this to bitset
+  m_canTargetSelf = m_actionData->canTargetSelf;
+  m_canTargetParty = m_actionData->canTargetParty;
+  m_canTargetFriendly = m_actionData->canTargetFriendly;
+  m_canTargetHostile = m_actionData->canTargetHostile;
+  // todo: this one doesn't look right based on whats in that col, probably has shifted
+  m_canTargetDead = m_actionData->canTargetDead;
+
   // a default range is set by the game for the class/job
   if( m_range == -1 )
   {
@@ -91,6 +102,8 @@ bool Sapphire::Action::Action::init()
 
   // todo: add missing rows for secondaryCostType/secondaryCostType and rename the current rows to primaryCostX
 
+  addDefaultActorFilters();
+
   return true;
 }
 
@@ -297,7 +310,13 @@ void Sapphire::Action::Action::execute()
 
   if( !hasClientsideTarget() )
   {
-    pScriptMgr->onExecute( *this );
+    snapshotAffectedActors( m_hitActors );
+
+    if( !m_hitActors.empty() )
+    {
+      // only call script if actors are hit
+      pScriptMgr->onExecute( *this );
+    }
   }
   else if( auto player = m_pSource->getAsPlayer() )
   {
@@ -313,42 +332,6 @@ void Sapphire::Action::Action::execute()
   }
 }
 
-void Sapphire::Action::Action::calculateActionCost()
-{
-  // todo: just a test handler for now to get MP output for each cast, not sure where we should put this
-  // check primary cost
-  switch( m_primaryCostType )
-  {
-    case ActionPrimaryCostType::None:
-    {
-      break;
-    }
-    case ActionPrimaryCostType::MagicPoints:
-    {
-      // todo: not sure if we should store the final value like this?
-      m_primaryCost = Math::CalcStats::calculateMpCost( *m_pSource, m_primaryCost );
-      break;
-    }
-    case ActionPrimaryCostType::TacticsPoints:
-    {
-      break;
-    }
-
-    default:
-    {
-      if( auto player = m_pSource->getAsPlayer() )
-      {
-        player->sendDebug( "action#{0} is missing a handler for cost type: {1}",
-                           m_id, static_cast< uint8_t >( m_primaryCostType ) );
-      }
-
-      break;
-    }
-  }
-
-  // todo: secondary cost type needs to be handled
-}
-
 bool Sapphire::Action::Action::precheck()
 {
   if( auto player = m_pSource->getAsPlayer() )
@@ -490,4 +473,102 @@ bool Sapphire::Action::Action::hasResources()
 bool Sapphire::Action::Action::consumeResources()
 {
   return primaryCostCheck( true ) && secondaryCostCheck( true );
+}
+
+bool Sapphire::Action::Action::snapshotAffectedActors( std::vector< Entity::CharaPtr >& actors )
+{
+  for( const auto& actor : m_pSource->getInRangeActors() )
+  {
+    // check for initial target validity based on flags in action exd (pc/enemy/etc.)
+    if( !preFilterActor( *actor ) )
+      continue;
+
+    for( const auto& filter : m_actorFilters )
+    {
+      if( filter->conditionApplies( *actor ) )
+      {
+        actors.push_back( actor->getAsChara() );
+        break;
+      }
+    }
+  }
+
+  if( auto player = m_pSource->getAsPlayer() )
+  {
+    player->sendDebug( "Hit {} actors with {} filters", actors.size(), m_actorFilters.size() );
+    for( const auto& actor : actors )
+    {
+      player->sendDebug( "hit actor#{}", actor->getId() );
+    }
+  }
+}
+
+void Sapphire::Action::Action::addActorFilter( World::Util::ActorFilterPtr filter )
+{
+  m_actorFilters.push_back( std::move( filter ) );
+}
+
+void Sapphire::Action::Action::addDefaultActorFilters()
+{
+  switch( m_castType )
+  {
+    case Common::CastType::SingleTarget:
+    {
+      auto filter = std::make_shared< World::Util::ActorFilterSingleTarget >( static_cast< uint32_t >( m_targetId ) );
+
+      addActorFilter( filter );
+
+      break;
+    }
+
+    case Common::CastType::CircularAOE:
+    {
+      auto filter = std::make_shared< World::Util::ActorFilterInRange >( m_pos, m_effectRange );
+
+      addActorFilter( filter );
+
+      break;
+    }
+
+//    case Common::CastType::RectangularAOE:
+//    {
+//      break;
+//    }
+
+    default:
+    {
+      Logger::error( "[{}] Action#{} has CastType#{} but that cast type is unhandled. Cancelling cast.",
+                     m_pSource->getId(), getId(), m_castType );
+
+      interrupt();
+    }
+  }
+}
+
+bool Sapphire::Action::Action::preFilterActor( Sapphire::Entity::Actor& actor ) const
+{
+  auto kind = actor.getObjKind();
+
+  // todo: are there any server side eobjs that players can hit?
+  if( kind != ObjKind::BattleNpc && kind != ObjKind::Player )
+    return false;
+
+  // todo: handle things such based on canTargetX
+
+  return true;
+}
+
+std::vector< Sapphire::Entity::CharaPtr >& Sapphire::Action::Action::getHitActors()
+{
+  return m_hitActors;
+}
+
+Sapphire::Entity::CharaPtr Sapphire::Action::Action::getHitActor()
+{
+  if( !m_hitActors.empty() )
+  {
+    return m_hitActors.at( 0 );
+  }
+
+  return nullptr;
 }
\ No newline at end of file
diff --git a/src/world/Action/Action.h b/src/world/Action/Action.h
index 0d7f7e71..6c689a13 100644
--- a/src/world/Action/Action.h
+++ b/src/world/Action/Action.h
@@ -2,6 +2,7 @@
 #define _ACTION_H_
 
 #include <Common.h>
+#include "Util/ActorFilter.h"
 #include "ForwardsZone.h"
 
 namespace Sapphire::Data
@@ -76,6 +77,34 @@ namespace Sapphire::Action
      */
     bool precheck();
 
+    /*!
+     * @brief Snapshots characters affected by a cast.
+     * @param filters A vector of filters to be applied to the in range set of the caster
+     * @param actors Actors that match the filters are copied here
+     * @return true if actors are hit
+     */
+    bool snapshotAffectedActors( std::vector< Entity::CharaPtr >& actors );
+
+    /*!
+     * @brief Adds an actor filter to this action.
+     * @param filter The ptr to the ActorFilter to add
+     */
+    void addActorFilter( World::Util::ActorFilterPtr filter );
+
+    /*!
+     * @brief Adds the default actor filters based on the CastType entry in the Action exd.
+     */
+    void addDefaultActorFilters();
+
+
+    std::vector< Entity::CharaPtr >& getHitActors();
+
+    /*!
+     * @brief Returns the first hit actor inside the m_hitActors vector.
+     * @return The CharaPtr otherwise nullptr
+     */
+    Entity::CharaPtr getHitActor();
+
     /*!
      * @brief Starts the cast. Finishes it immediately if there is no cast time (weaponskills).
      */
@@ -108,6 +137,8 @@ namespace Sapphire::Action
 
     bool playerPrecheck( Entity::Player& player );
 
+    bool preFilterActor( Entity::Actor& actor ) const;
+
     uint32_t m_id;
 
     Common::ActionPrimaryCostType m_primaryCostType;
@@ -119,7 +150,9 @@ namespace Sapphire::Action
     uint8_t m_cooldownGroup;
     int8_t m_range;
     uint8_t m_effectRange;
+    uint8_t m_xAxisModifier;
     Common::ActionAspect m_aspect;
+    Common::CastType m_castType;
 
     uint32_t m_additionalData;
 
@@ -127,12 +160,21 @@ namespace Sapphire::Action
     Entity::CharaPtr m_pTarget;
     uint64_t m_targetId;
 
+    bool m_canTargetSelf;
+    bool m_canTargetParty;
+    bool m_canTargetFriendly;
+    bool m_canTargetHostile;
+    bool m_canTargetDead;
+
     Common::ActionInterruptType m_interruptType;
 
     FrameworkPtr m_pFw;
     Data::ActionPtr m_actionData;
 
     Common::FFXIVARR_POSITION3 m_pos;
+
+    std::vector< World::Util::ActorFilterPtr > m_actorFilters;
+    std::vector< Entity::CharaPtr > m_hitActors;
   };
 }
 
diff --git a/src/world/Actor/Player.cpp b/src/world/Actor/Player.cpp
index 77b7dd0c..b3a24b7d 100644
--- a/src/world/Actor/Player.cpp
+++ b/src/world/Actor/Player.cpp
@@ -2097,7 +2097,7 @@ void Sapphire::Entity::Player::updateHuntingLog( uint16_t id )
                                         static_cast< uint8_t >( getClass() ), logEntry.rank + 1, 0 ) );
     }
   }
-  
+
   if( logChanged )
     sendHuntingLog();
 }
diff --git a/src/world/Manager/ActionMgr.cpp b/src/world/Manager/ActionMgr.cpp
index 13b662f2..87c37897 100644
--- a/src/world/Manager/ActionMgr.cpp
+++ b/src/world/Manager/ActionMgr.cpp
@@ -45,6 +45,11 @@ void World::Manager::ActionMgr::handleTargetedPlayerAction( Entity::Player& play
 {
   auto action = Action::make_Action( player.getAsPlayer(), actionId, actionData, framework() );
 
+  action->setTargetId( targetId );
+
+  if( player.getId() == targetId )
+    action->setPos( player.getPos() );
+
   if( !action->init() )
     return;
 
@@ -55,8 +60,6 @@ void World::Manager::ActionMgr::handleTargetedPlayerAction( Entity::Player& play
     return;
   }
 
-  action->setTargetId( targetId );
-
   bootstrapAction( player, action, *actionData );
 }
 
diff --git a/src/world/Session.cpp b/src/world/Session.cpp
index d32bce25..6e612421 100644
--- a/src/world/Session.cpp
+++ b/src/world/Session.cpp
@@ -17,11 +17,8 @@ Sapphire::World::Session::Session( uint32_t sessionId, FrameworkPtr pFw ) :
   m_lastDataTime( Util::getTimeSeconds() ),
   m_lastSqlTime( Util::getTimeSeconds() ),
   m_isValid( false ),
-  m_pFw( pFw )
-{
-}
-
-Sapphire::World::Session::~Session()
+  m_pFw( std::move( pFw ) ),
+  m_isReplaying( false )
 {
 }
 
diff --git a/src/world/Session.h b/src/world/Session.h
index 97d51241..dcbd78cb 100644
--- a/src/world/Session.h
+++ b/src/world/Session.h
@@ -13,7 +13,7 @@ namespace Sapphire::World
   public:
     Session( uint32_t sessionId, FrameworkPtr pFw );
 
-    ~Session();
+    ~Session() = default;
 
     void setZoneConnection( Network::GameConnectionPtr zoneCon );
 
diff --git a/src/world/Util/ActorFilter.cpp b/src/world/Util/ActorFilter.cpp
index ec7fee56..4714e1d7 100644
--- a/src/world/Util/ActorFilter.cpp
+++ b/src/world/Util/ActorFilter.cpp
@@ -13,8 +13,19 @@ Sapphire::World::Util::ActorFilterInRange::ActorFilterInRange( Common::FFXIVARR_
 
 bool Sapphire::World::Util::ActorFilterInRange::conditionApplies( const Entity::Actor& actor )
 {
-  return Sapphire::Util::distance( m_startPos.x, m_startPos.y, m_startPos.z,
-                               actor.getPos().x, actor.getPos().y, actor.getPos().z ) <= m_range;
+  return Sapphire::Util::distance( m_startPos, actor.getPos() ) <= m_range;
 }
 
 ///////////////////////////////////////////////////////////////////////////////////////////////////////
+
+Sapphire::World::Util::ActorFilterSingleTarget::ActorFilterSingleTarget( uint32_t actorId ) :
+  m_actorId( actorId )
+{
+}
+
+bool Sapphire::World::Util::ActorFilterSingleTarget::conditionApplies( const Sapphire::Entity::Actor& actor )
+{
+  return actor.getId() == m_actorId;
+}
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////
\ No newline at end of file
diff --git a/src/world/Util/ActorFilter.h b/src/world/Util/ActorFilter.h
index 7109e16b..2d45ddde 100644
--- a/src/world/Util/ActorFilter.h
+++ b/src/world/Util/ActorFilter.h
@@ -9,7 +9,6 @@
 
 namespace Sapphire::World::Util
 {
-
   class ActorFilter
   {
   public:
@@ -18,6 +17,8 @@ namespace Sapphire::World::Util
     virtual bool conditionApplies( const Entity::Actor& actor ) = 0;
   };
 
+  using ActorFilterPtr = std::shared_ptr< ActorFilter >;
+
   /////////////////////////////////////////////////////////////////////////////
  
   class ActorFilterInRange : public ActorFilter
@@ -29,18 +30,15 @@ namespace Sapphire::World::Util
     bool conditionApplies( const Entity::Actor& actor ) override;
   };
 
-  // usage in psudocode
-  //
-  //  std::set< ActorPtr > filterActorList( inputSet, filter )
-  //  {
-  //    std::set< ActorPtr > resultSet;
-  //    for( every actor in inputSet )
-  //    {
-  //       if( filter.conditionApplies( actor ) )
-  //         resultSet.insert( actor.asPointer() );
-  //    }
-  //    return resultSet;
-  //
+  /////////////////////////////////////////////////////////////////////////////
+
+  class ActorFilterSingleTarget : public ActorFilter
+  {
+    uint32_t m_actorId;
+  public:
+    explicit ActorFilterSingleTarget( uint32_t actorId );
+    bool conditionApplies( const Entity::Actor& actor ) override;
+  };
 }
 
 #endif