Scizor Red Armor

[Solid_Like_A_Brock]

If my opponent's Garchomp C Lv.X uses Dragon Rush on my Scizor Prime with Red Armor, with a Double Colorless Energy as the only energy attached, and they discard it to pay for the attack, what happens.

Basically, does the energy get discarded before the damage is dealt, causing the damage to ignore Red Armor?

 

[PokePop]

Regardless of how the card is worded, damage is always done before card effects.
Check the attack steps in the rule book.
You choose the energy to discard first, but it is not discarded until after damage is done.
So it would be blocked.

 

[bulbasnore]

And you still discard the energy.

 

[PokePop]

Note: It is assumed that there is an Energy Gain attached as well.