This is mostly built around abusing cards, a prime example is
League Explorer. We also build upon AI indecision and mechanics, an example is if we play
League Explorer and
Vulk, the Autoforge, the AI will almost every time prioritise Autoforge compared to explorer, and we can consistently resurrect Vulk to the point where the AI can't even kill it. I have completed several consistent runs in master gauntlet and have defeated people in throne. Bully the AI, and if you want to, bully people too.
Edit: The deck doesn't entirely depend on vulk. We also depend on
Promenade Patrol and
Fort Smasher. Promenade patrol benefits from Vulk dying, and you can buff your sentinel units, and Fort smasher can quickly play other units to fill the board if the enemy is focusing too much on power. With fort smasher we can get promenade patrol, other fort smashers, and league diver. Also rocket blaster helps keep diver alive