Okay, psychic last turn was a stupid idea ^^;

Reshiram, I'm gonna simplify this round. Start off with double team, and follow up with outrage.

Yami, now that your cover is blown you can start off with Nasty Plot x2. Then finish off with incinerate to burn that bug. If he uses Taunt or Torment just use Foul Play or Faint Attack.

Reshiram: Double Team ~ Outrage ~ Outrage
Yami: Nasty Plot / Foul Play ~ Nasty Plot / Faint Attack ~ Incinerate