Add Igneous Cur

lib/magic/cards/igneous_cur.rb

@@ -0,0 +1,23 @@
+module Magic
+  module Cards
+    IgneousCur = Creature("Igneous Cur") do
+      creature_type("Elemental Dog")
+      power 1
+      toughness 2
+    end
+
+    class IgneousCur < Creature
+      class ActivatedAbility < Magic::ActivatedAbility
+        def costs
+          [Costs::Mana.new(red: 1, generic: 1)]
+        end
+
+        def resolve!
+          source.modify_power(2)
+        end
+      end
+
+      def activated_abilities = [ActivatedAbility]
+    end
+  end
+end

spec/cards/igneous_cur_spec.rb

@@ -0,0 +1,32 @@
+require 'spec_helper'
+
+RSpec.describe Magic::Cards::IgneousCur do
+  include_context "two player game"
+
+  subject { ResolvePermanent("Igneous Cur", owner: p1) }
+
+
+  context "activated ability" do
+    it "increases power by +2" do
+      expect(subject.power).to eq(1)
+      expect(subject.activated_abilities.count).to eq(1)
+      p1.add_mana(red: 2)
+
+      ability = subject.activated_abilities.first
+      p1.activate_ability(ability: ability) do
+        _1.pay_mana(red: 1, generic: { red: 1 })
+      end
+      game.stack.resolve!
+      expect(subject.power).to eq(3)
+
+      p1.add_mana(red: 2)
+      p1.activate_ability(ability: ability) do
+        _1.pay_mana(red: 1, generic: { red: 1 })
+      end
+      game.stack.resolve!
+
+      expect(subject.power).to eq(5)
+      expect(subject.toughness).to eq(2)
+    end
+  end
+end