diff --git a/src/card/playing.rs b/src/card/playing.rs
index 84e745b..3561ad6 100644
--- a/src/card/playing.rs
+++ b/src/card/playing.rs
@@ -1,41 +1,29 @@
 use bevy::prelude::*;
 
 use crate::{
-    animation::transform::AnimatedTransform,
     card::{CardInHand, InsertCard, drag::CardDropped},
     grid::Grid,
     mouse_position::MousePosition,
-    turns::TurnUnit,
-    unit::UnitTextures,
+    unit::{doh, fosma, zlosma},
 };
 
 pub fn card_playing_system(
     event: On<CardDropped>,
     mut commands: Commands,
-    mut grid: Single<&mut Grid>,
+    grid: Single<&mut Grid>,
     mouse_position: Res<MousePosition>,
-    textures: Res<UnitTextures>,
 ) {
-    let bundle = match event.card_type {
-        super::CardType::Unit(unit_type) => match unit_type {
-            crate::unit::UnitType::Fosma => Sprite::from_image(textures.fosma_texture()),
-            crate::unit::UnitType::Zlosma => Sprite::from_image(textures.zlosma_texture()),
-            crate::unit::UnitType::Doh => Sprite::from_image(textures.doh_texture()),
-        },
-    };
-    let unit = commands
-        .spawn((
-            AnimatedTransform::identity(),
-            Transform::from_translation(mouse_position.position),
-            bundle,
-            TurnUnit,
-        ))
-        .id();
-    if grid.try_set(mouse_position.position.truncate(), unit) {
-        commands.entity(event.entity).despawn();
-    } else {
-        commands.entity(unit).despawn();
+    if grid.is_occupied(mouse_position.position.truncate()) {
         commands.entity(event.entity).insert(CardInHand);
         commands.trigger(InsertCard(event.entity));
+        return;
     }
+    match event.card_type {
+        super::CardType::Unit(unit_type) => match unit_type {
+            crate::unit::UnitType::Fosma => commands.run_system_cached(fosma::spawn_fosma),
+            crate::unit::UnitType::Zlosma => commands.run_system_cached(zlosma::spawn_zlosma),
+            crate::unit::UnitType::Doh => commands.run_system_cached(doh::spawn_doh),
+        },
+    }
+    commands.entity(event.entity).despawn();
 }
diff --git a/src/grid.rs b/src/grid.rs
index 9c1bfd9..4dd3b03 100644
--- a/src/grid.rs
+++ b/src/grid.rs
@@ -67,6 +67,22 @@ impl Grid {
         }
     }
 
+    pub fn get_entity(&self, position: Vec2) -> Option<Entity> {
+        if self.is_in_grid(position) == false {
+            return None;
+        }
+
+        match self.elements[self.indexify_position(position)] {
+            CellState::Filled(entity) => Some(entity.clone()),
+            CellState::Part(entity) => Some(entity.clone()),
+            CellState::Empty => None,
+        }
+    }
+
+    pub fn get_entity_in_direction(&self, position: Vec2, direction: Vec2) -> Option<Entity> {
+        self.get_entity(position + direction * self.cell_size())
+    }
+
     pub fn try_set(&mut self, position: Vec2, entity: Entity) -> bool {
         if self.is_occupied(position) {
             return false;
diff --git a/src/unit/doh.rs b/src/unit/doh.rs
new file mode 100644
index 0000000..0f51e62
--- /dev/null
+++ b/src/unit/doh.rs
@@ -0,0 +1,30 @@
+use crate::{
+    animation::transform::AnimatedTransform,
+    grid::Grid,
+    mouse_position::MousePosition,
+    turns::{TurnBusy, TurnState, TurnUnit},
+    unit::{UnitTextures, health::Health},
+};
+use bevy::prelude::*;
+
+#[derive(Component)]
+pub struct Doh;
+
+pub fn spawn_doh(
+    mut commands: Commands,
+    mut grid: Single<&mut Grid>,
+    mouse_position: Res<MousePosition>,
+    unit_textures: Res<UnitTextures>,
+) {
+    let doh = commands
+        .spawn((
+            Doh,
+            Sprite::from(unit_textures.doh_texture()),
+            Health::new(10),
+            Transform::from_xyz(mouse_position.position.x, mouse_position.position.y, 1.),
+            AnimatedTransform::from_xyz(mouse_position.position.x, mouse_position.position.y, 1.),
+            TurnUnit,
+        ))
+        .id();
+    grid.try_set(mouse_position.position.truncate(), doh);
+}
diff --git a/src/unit/fosma.rs b/src/unit/fosma.rs
new file mode 100644
index 0000000..532d243
--- /dev/null
+++ b/src/unit/fosma.rs
@@ -0,0 +1,30 @@
+use crate::{
+    animation::transform::AnimatedTransform,
+    grid::Grid,
+    mouse_position::MousePosition,
+    turns::{TurnBusy, TurnState, TurnUnit},
+    unit::{UnitTextures, health::Health},
+};
+use bevy::prelude::*;
+
+#[derive(Component)]
+pub struct Fosma;
+
+pub fn spawn_fosma(
+    mut commands: Commands,
+    mut grid: Single<&mut Grid>,
+    mouse_position: Res<MousePosition>,
+    unit_textures: Res<UnitTextures>,
+) {
+    let fosma = commands
+        .spawn((
+            Fosma,
+            Sprite::from(unit_textures.fosma_texture()),
+            Health::new(10),
+            Transform::from_xyz(mouse_position.position.x, mouse_position.position.y, 1.),
+            AnimatedTransform::from_xyz(mouse_position.position.x, mouse_position.position.y, 1.),
+            TurnUnit,
+        ))
+        .id();
+    grid.try_set(mouse_position.position.truncate(), fosma);
+}
diff --git a/src/unit/health.rs b/src/unit/health.rs
new file mode 100644
index 0000000..ac85595
--- /dev/null
+++ b/src/unit/health.rs
@@ -0,0 +1,13 @@
+use bevy::prelude::*;
+
+#[derive(Component)]
+pub struct Health {
+    pub max_hp: u32,
+    pub hp: u32,
+}
+
+impl Health {
+    pub fn new(max_hp: u32) -> Self {
+        Self { max_hp, hp: max_hp }
+    }
+}
diff --git a/src/unit/mod.rs b/src/unit/mod.rs
index e075b7c..88e2257 100644
--- a/src/unit/mod.rs
+++ b/src/unit/mod.rs
@@ -1,5 +1,10 @@
 use bevy::prelude::*;
 
+pub mod doh;
+pub mod fosma;
+pub mod health;
+pub mod zlosma;
+
 pub struct UnitPlugin;
 impl Plugin for UnitPlugin {
     fn build(&self, app: &mut App) {
diff --git a/src/unit/zlosma.rs b/src/unit/zlosma.rs
new file mode 100644
index 0000000..4c93849
--- /dev/null
+++ b/src/unit/zlosma.rs
@@ -0,0 +1,30 @@
+use crate::{
+    animation::transform::AnimatedTransform,
+    grid::Grid,
+    mouse_position::MousePosition,
+    turns::{TurnBusy, TurnState, TurnUnit},
+    unit::{UnitTextures, health::Health},
+};
+use bevy::prelude::*;
+
+#[derive(Component)]
+pub struct Zlosma;
+
+pub fn spawn_zlosma(
+    mut commands: Commands,
+    mut grid: Single<&mut Grid>,
+    mouse_position: Res<MousePosition>,
+    unit_textures: Res<UnitTextures>,
+) {
+    let zlosma = commands
+        .spawn((
+            Zlosma,
+            Sprite::from(unit_textures.zlosma_texture()),
+            Health::new(10),
+            Transform::from_xyz(mouse_position.position.x, mouse_position.position.y, 1.),
+            AnimatedTransform::from_xyz(mouse_position.position.x, mouse_position.position.y, 1.),
+            TurnUnit,
+        ))
+        .id();
+    grid.try_set(mouse_position.position.truncate(), zlosma);
+}