diff --git a/src/Test/Card/Ability/Attack.php b/src/Test/Card/Ability/Attack.php
index 8c0ac1e..b217d46 100644
--- a/src/Test/Card/Ability/Attack.php
+++ b/src/Test/Card/Ability/Attack.php
@@ -43,4 +43,7 @@ class Attack extends \OpenLegends\Engine\Abstract\Card\Ability
 
         // @TODO remove abilities
     }
+
+    public function apply()
+    {}
 }
\ No newline at end of file
diff --git a/src/Test/Card/Ability/Drain.php b/src/Test/Card/Ability/Drain.php
index 88ff1b7..02295ac 100644
--- a/src/Test/Card/Ability/Drain.php
+++ b/src/Test/Card/Ability/Drain.php
@@ -5,4 +5,7 @@ declare(strict_types=1);
 namespace OpenLegends\Asset\Test\Card\Ability;
 
 class Drain extends \OpenLegends\Engine\Abstract\Card\Ability
-{}
\ No newline at end of file
+{
+    public function apply(): void
+    {}
+}
\ No newline at end of file
diff --git a/src/Test/Card/Ability/Guard.php b/src/Test/Card/Ability/Guard.php
index eb10f90..84dcd55 100644
--- a/src/Test/Card/Ability/Guard.php
+++ b/src/Test/Card/Ability/Guard.php
@@ -5,4 +5,7 @@ declare(strict_types=1);
 namespace OpenLegends\Asset\Test\Card\Ability;
 
 class Guard extends \OpenLegends\Engine\Abstract\Card\Ability
-{}
\ No newline at end of file
+{
+    public function apply(): void
+    {}
+}
\ No newline at end of file
diff --git a/src/Test/Card/Ability/Lethal.php b/src/Test/Card/Ability/Lethal.php
index 89abffd..9ed3f69 100644
--- a/src/Test/Card/Ability/Lethal.php
+++ b/src/Test/Card/Ability/Lethal.php
@@ -5,4 +5,7 @@ declare(strict_types=1);
 namespace OpenLegends\Asset\Test\Card\Ability;
 
 class Lethal extends \OpenLegends\Engine\Abstract\Card\Ability
-{}
\ No newline at end of file
+{
+    public function apply(): void
+    {}
+}
\ No newline at end of file
diff --git a/src/Test/Card/Ability/Multiple.php b/src/Test/Card/Ability/Multiple.php
index 1a6174e..42a7959 100644
--- a/src/Test/Card/Ability/Multiple.php
+++ b/src/Test/Card/Ability/Multiple.php
@@ -14,4 +14,12 @@ class Multiple extends \OpenLegends\Engine\Abstract\Card\Ability
     {
         $this->_abilities[] = $ability;
     }
+
+    public function apply(): void
+    {
+        foreach ($this->_abilities as $ability)
+        {
+            $ability->apply();
+        }
+    }
 }
\ No newline at end of file