Alert when final chapter ability is resolving

lib/magic/cards/battle_for_bretagard.rb

@@ -19,19 +19,19 @@ class BattleForBretagard < Saga
       end
 
       class Chapter1 < Chapter
-        def start
+        def resolve
           actor.trigger_effect(:create_token, token_class: HumanWarriorToken)
         end
       end
 
       class Chapter2 < Chapter
-        def start
+        def resolve
           actor.trigger_effect(:create_token, token_class: ElfWarriorToken)
         end
       end
 
       class Chapter3 < Chapter
-        def start
+        def resolve
           actor.game.add_choice(BattleForBretagard::Choice.new(actor: actor))
         end
       end

lib/magic/cards/saga.rb

@@ -7,6 +7,29 @@ class Chapter
         def initialize(actor:)
           @actor = actor
         end
+
+        def name
+          self.class.name.split("::").last
+        end
+
+        def resolve!
+          resolve
+
+          if final_chapter?
+            card.game.notify!(Events::FinalChapterAbilityResolved, actor: actor)
+            actor.sacrifice!
+          end
+        end
+
+        def final_chapter?
+          card.chapters.count == actor.counters.of_type(Counters::Lore).count
+        end
+
+        private
+
+        def card
+          actor.card
+        end
       end
 
       type T::Enchantment, "Saga"
@@ -23,9 +46,7 @@ def should_perform?
         def call
           lore_counters = actor.counters.of_type(Counters::Lore)
           chapter_class = card.chapter(lore_counters)
-          chapter_class.new(actor: actor).start
-
-          actor.sacrifice! if card.chapters.count == lore_counters.count
+          game.stack.add(chapter_class.new(actor: actor))
         end
       end
 

spec/game/integration/saga_lore_counters_spec.rb

@@ -14,7 +14,7 @@
   context "as a card" do
     let(:card) { Card("Battle For Bretagard") }
 
-    it "adds a lore counter when it enters" do
+    it "adds a lore counter when it enters, and for each main phase" do
       p1.add_mana(white: 2, green: 1)
       p1.cast(card: card) do
         _1.auto_pay_mana
@@ -40,6 +40,8 @@
 
       expect(permanent.counters.of_type(Magic::Counters::Lore).count).to eq(2)
 
+      game.stack.resolve!
+
       elf_warrior = game.battlefield.by_name("Elf Warrior")
       expect(elf_warrior.count).to eq(1)
 
@@ -52,6 +54,8 @@
       turn_5.draw!
       turn_5.first_main!
 
+      game.stack.resolve!
+
       expect(game.battlefield.by_name("Battle for Bretagard")).to be_empty
       expect(card.zone).to be_graveyard