In all games, Reshiram is the better special attacker. It has an amazing Special Attack stat of 150, above Zekrom's 120. Zekrom works as a special attacker, but it's so much better as a physical attacker. With the moveset I provide, Reshiram can hit a great many Trials, Kahunas, and random Trainers for super effective damage, plus a bit of the Elite 4 and Champion.
Reshiram @ Life Orb
Ability: Turboblaze
- Dragon Pulse / Draco Meteor
- Fusion Flare
- Earth Power
- Psychic / Shadow Ball / Hyper Voice
Hope I helped!