Rules:
Immune
At the start of your turn, the raid leader flips a Horseman face down.
Each Horseman can't leave play unless all four have fatal damage.
When a Horseman is dealt fatal damage, flip this card face down.
BACK: Immune
At the start of your turn, the raid leader flips a Horseman face down.
Each Horseman can't leave play unless all four have fatal damage.
Each Horsemen has 0 [ATK] and can't gain ATK while it has fatal damage.
When all four Horsemen leave play, destroy this card.
