diff --git a/app/models/party.rb b/app/models/party.rb
index 0ad7a2a..3cb3b99 100644
--- a/app/models/party.rb
+++ b/app/models/party.rb
@@ -200,8 +200,13 @@ class Party < ApplicationRecord
   validates :button_count, numericality: { only_integer: true }, allow_nil: true
   validates :chain_count, numericality: { only_integer: true }, allow_nil: true
   validates :turn_count, numericality: { only_integer: true }, allow_nil: true
+  validates :summon_count, numericality: { only_integer: true }, allow_nil: true
   validates :ultimate_mastery, numericality: { only_integer: true }, allow_nil: true
 
+  # YouTube URL validation regex
+  YOUTUBE_REGEX = %r{\A(?:https?://)?(?:www\.)?(?:youtube\.com/watch\?v=|youtu\.be/)[\w-]+}
+  validates :video_url, format: { with: YOUTUBE_REGEX, message: 'must be a valid YouTube URL' }, allow_blank: true
+
   # Validate visibility (allowed values: 1, 2, or 3).
   validates :visibility,
             numericality: { only_integer: true },
diff --git a/db/migrate/20251220100000_add_video_url_and_summon_count_to_parties.rb b/db/migrate/20251220100000_add_video_url_and_summon_count_to_parties.rb
new file mode 100644
index 0000000..1dec836
--- /dev/null
+++ b/db/migrate/20251220100000_add_video_url_and_summon_count_to_parties.rb
@@ -0,0 +1,8 @@
+# frozen_string_literal: true
+
+class AddVideoUrlAndSummonCountToParties < ActiveRecord::Migration[8.0]
+  def change
+    add_column :parties, :video_url, :string, limit: 2048
+    add_column :parties, :summon_count, :integer
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 137d7df..c63b95c 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[8.0].define(version: 2025_12_20_014422) do
+ActiveRecord::Schema[8.0].define(version: 2025_12_20_100000) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "btree_gin"
   enable_extension "pg_catalog.plpgsql"
@@ -135,7 +135,6 @@ ActiveRecord::Schema[8.0].define(version: 2025_12_20_014422) do
     t.text "wiki_raw"
     t.jsonb "game_raw_en", comment: "JSON data from game (English)"
     t.jsonb "game_raw_jp", comment: "JSON data from game (Japanese)"
-    t.text "game_raw_en_backup"
     t.integer "season"
     t.integer "series", default: [], null: false, array: true
     t.index ["granblue_id"], name: "index_characters_on_granblue_id"
@@ -637,6 +636,8 @@ ActiveRecord::Schema[8.0].define(version: 2025_12_20_014422) do
     t.integer "preview_state", default: 0, null: false
     t.datetime "preview_generated_at"
     t.string "preview_s3_key"
+    t.string "video_url", limit: 2048
+    t.integer "summon_count"
     t.index ["accessory_id"], name: "index_parties_on_accessory_id"
     t.index ["created_at"], name: "index_parties_on_created_at"
     t.index ["element"], name: "index_parties_on_element"