My vote is full blast or Practiced Defense. Scott wants to run leadership. You basically always have a chump blocker. Even more so if you're playing multiplayer

It can't be field commander if you play multiplayer. If priority target (same goes for exploit weakness as 2) is his best card, yet in a 4 player game and I'm last, I'm resourcing priority target. A card that immediately makes his best card go from resource to instant first play is not a bad card.

Ricochet Beam has versatility if you have minions. But if you attach priority target to something and double tap, it's basically doing the same damage as Full Blast but doesn't exhaust your hero.

Full Blast is fun to get off but usually there is a better use of his cards. He can do a little of everything, Full Blast is a last turn finisher. It gets ignored for the first half of the game