So here's a funny little list:

Firstly, I'm going to address the elephant in the room: Marksmanship. I know what you're thinking: "WHY?!"

Here's the logic behind that: Chopper lets me take actions while stressed; and Wullf gets an extra attack dice if he starts taking damage. This means that the damage taken from Chopper won't be going to waste. And while Wulf will likely be taking damage as a matter of course, he's still a tough brick. Since Marksmanship works like Expertise, but also allows for crits, I'm not any worse off from it, and you can't shut Wullf out from action economy on Stress alone.

The problem with this plan is obvious: Wullf is sacrificial. Between people shooting at him, and the damage he'll take from Chopper, he'll drop fast. True. But I don't always have to use Chopper. It's a Gimmick. A hilarious gimmick, but a gimmick nonetheless.

Rey is the Buzzsaw of Doom, which has it's own set of gimmicks.