diff --git a/server/game/cards/04_JTL/units/FireballAnExplosionWithWings.ts b/server/game/cards/04_JTL/units/FireballAnExplosionWithWings.ts
new file mode 100644
index 000000000..74b51a1f3
--- /dev/null
+++ b/server/game/cards/04_JTL/units/FireballAnExplosionWithWings.ts
@@ -0,0 +1,22 @@
+import AbilityHelper from '../../../AbilityHelper';
+import { NonLeaderUnitCard } from '../../../core/card/NonLeaderUnitCard';
+import { PhaseName } from '../../../core/Constants';
+
+export default class FireballAnExplosionWithWings extends NonLeaderUnitCard {
+    protected override getImplementationId() {
+        return {
+            id: '4240570958',
+            internalName: 'fireball#an-explosion-with-wings',
+        };
+    }
+
+    public override setupCardAbilities() {
+        this.addTriggeredAbility({
+            title: 'Deal 1 damage to this unit.',
+            when: {
+                onPhaseStarted: (context) => context.phase === PhaseName.Regroup
+            },
+            immediateEffect: AbilityHelper.immediateEffects.damage({ amount: 1 }),
+        });
+    }
+}
diff --git a/test/server/cards/04_JTL/units/FireballAnExplosionWithWings.spec.ts b/test/server/cards/04_JTL/units/FireballAnExplosionWithWings.spec.ts
new file mode 100644
index 000000000..4bdfc2aa7
--- /dev/null
+++ b/test/server/cards/04_JTL/units/FireballAnExplosionWithWings.spec.ts
@@ -0,0 +1,44 @@
+describe('Fireball, An Explosion With Wings', function() {
+    integration(function(contextRef) {
+        describe('Fireball\'s ability', function() {
+            beforeEach(function () {
+                return contextRef.setupTestAsync({
+                    phase: 'action',
+                    player1: {
+                        hand: ['fireball#an-explosion-with-wings']
+                    },
+                    player2: {
+                        spaceArena: ['tieln-fighter']
+                    }
+                });
+            });
+
+            it('includes Ambush', function() {
+                const { context } = contextRef;
+
+                context.player1.clickCard(context.fireball);
+
+                expect(context.player1).toHavePrompt('Trigger the ability \'Ambush\' or pass');
+                context.player1.clickPrompt('Trigger');
+                context.player1.clickCard(context.tielnFighter);
+
+                expect(context.tielnFighter).toBeInZone('discard');
+                expect(context.fireball.damage).toBe(2);
+            });
+
+            it('deals 1 damage to itself at the start of the regroup phase', function() {
+                const { context } = contextRef;
+
+                context.player1.clickCard(context.fireball);
+                context.player1.clickPrompt('Pass');
+
+                expect(context.fireball.damage).toBe(0);
+
+                context.player2.claimInitiative();
+                context.player1.passAction();
+
+                expect(context.fireball.damage).toBe(1);
+            });
+        });
+    });
+});
\ No newline at end of file