A purple dragon's breath weapon can take on three different forms. It can manifest as a cone of searing energy, a burst of blinding power, or a deadly blade of pure energy.

In its cone form, the purple dragon's breath weapon deals the listed damage as normal. Creatures must make Reflex saves for half damage.

In its burst form, the dragon's energy manifests as a blinding flash. All creatures within the ability's redius must make Fortitude saves or be permanently blinded.

Size/Burst Radius- Medium/30ft, Large/40ft, Huge/60ft, Gargantuan/80ft, Colossal/100ft

In the breath weapon's final form, the dragon forms a blade of energy that it uses to slash through its enemies. The dragon uses the blade as a weapon within its normal melee reach. It gains iterative attacks with this weapon as per its base attack bonus, but never more than four such attacks. The blade ignores all physical barriers, allowing the dragon tp make touch attacks to strike its foes. It deals half the damage listrd for the dragon's breath weapon. Because of the energy nature of the blade, the dragon does not add its Strentgh modifier to the damage. The dragon makes this attack in addition to its other physical attacks, although it cannot use a bite attack in the same round it attacks with its blade. The blade dissipates at the end of the dragon's action.