For Crusade Battle Traits that are Pain Abilities, if you wish to Empower the unit for their normal Pain ability, do you have to spend 2 Pain Tokens to also get the Battle Trait benefit? Or just 1?
For example, if I were to put "Razor's Edge" on a unit of Kabalites (In your Shooting phase, when you select this unit to shoot, you can spend 1 Pain token to Empower this unit. While Empowered, ranged weapons equipped by models in this unit have the [SUSTAINED HITS 1] ability.), can I spend 1 Pain Token to give them Sustained Hits and also get their inherent Wound Re-Roll Pain ability? Or do you need to spend 2? I assume 1 because Empowered is Empowered, but just wanted to verify.
TIA!