Ruling Hydregion Question

[Gardegon]

If I attach Double Colorless Energy to Hydregion, do both energies from the DCE become a darkness, or just one?


Thanks

EDIT: TRanslation:

Hydreigon – Darkness – HP150
Stage 2 – Evolves from Zweilous

Ability: Dark Aura
All Energy attached to this Pokemon becomes Darkness Energy.

[D][D][D][D] Dangerous Blade: 60 damage. Choose 2 of your opponent’s Benched Pokemon, and this attack also does 40 damage to each of those Pokemon (don’t apply Weakness and Resistance when damaging the Bench).

Weakness: Fighting (x2)

 

[DNA]

We don't answer questions on cards not released in English.

But Hydreigon's Dark Aura is much like Charizard's Energy Burn. You can figure it out.