diff --git a/game/api/v1/serializers.py b/game/api/v1/serializers.py
index be88d30..3305596 100644
--- a/game/api/v1/serializers.py
+++ b/game/api/v1/serializers.py
@@ -90,7 +90,6 @@ class CreateDeckSerializer(serializers.ModelSerializer):
         return instance
 
 
-
 class GetPlayerSerializer(serializers.ModelSerializer):
     class Meta:
         model = Player
diff --git a/game/api/v1/views.py b/game/api/v1/views.py
index 21f71dc..bcfcf67 100644
--- a/game/api/v1/views.py
+++ b/game/api/v1/views.py
@@ -79,7 +79,11 @@ class PlayerCreateView(GenericAPIView, CreateModelMixin):
         access_jwt = sign_jwt({"id": instance.id, "type": "access"}, t_life=3600)
         refresh_jwt = sign_jwt({"id": instance.id, "type": "refresh"})
         return Response(
-            {"access_token": access_jwt, "refresh_token": refresh_jwt},
+            {
+                "access_token": access_jwt,
+                "refresh_token": refresh_jwt,
+                "deck_id": instance.get_last_deck().id,
+            },
             status=status.HTTP_201_CREATED,
         )
 
@@ -96,6 +100,7 @@ class DeckCreateView(GenericAPIView, CreateModelMixin):
         serializer.is_valid(raise_exception=True)
         instance = self.perform_create(serializer)
         heroes_list = ListHeroSerializer(instance.get_heroes(), many=True)
+        heroes_list.data["deck_id"] = instance.id
         return Response(heroes_list.data, status=status.HTTP_201_CREATED)
 
 
@@ -115,10 +120,30 @@ class RetireUpdateDeleteDeckView(
         return self.retrieve(request, *args, **kwargs)
 
     def put(self, request, *args, **kwargs):
+        if not self._check_user_identity(request.user.id, kwargs["id"]):
+            return Response(
+                "Attempt to change another user's deck",
+                status=status.HTTP_403_FORBIDDEN,
+            )
         return self.update(request, *args, **kwargs)
 
     def patch(self, request, *args, **kwargs):
+        if not self._check_user_identity(request.user.id, kwargs["id"]):
+            return Response(
+                "Attempt to change another user's deck",
+                status=status.HTTP_403_FORBIDDEN,
+            )
         return self.partial_update(request, *args, **kwargs)
 
     def delete(self, request, *args, **kwargs):
+        if not self._check_user_identity(request.user.id, kwargs["id"]):
+            return Response(
+                "Attempt to delete another user's deck",
+                status=status.HTTP_403_FORBIDDEN,
+            )
         return self.destroy(request, *args, **kwargs)
+
+    def _check_user_identity(self, user_id, deck_id) -> bool:
+        return deck_id in list(
+            Deck.objects.filter(player_id=user_id).values_list("id", flat=True)
+        )
diff --git a/game/models.py b/game/models.py
index d42763d..c65c3aa 100644
--- a/game/models.py
+++ b/game/models.py
@@ -29,7 +29,9 @@ class Player(models.Model):
     def save(
         self, force_insert=False, force_update=False, using=None, update_fields=None
     ):
+        """saves user and creates deck for him with 16 heroes"""
         super(Player, self).save()
+        deck = Deck.objects.create(player=self)
         types = (
             ["ARCHER" for _ in range(4)]
             + ["WARRIOR" for _ in range(6)]
@@ -54,6 +56,10 @@ class Player(models.Model):
                 hero.speed = random.randint(0, 10)
 
                 hero.save()
+                HeroInDeck.objects.create(deck=deck, hero=hero)
+
+    def get_last_deck(self):
+        return Deck.objects.filter(player=self).last()
 
     def __str__(self):
         return self.name