I love throwing non-meta creatures in the lineup, you can pull off some surprising wins. Many users have no idea what to do when you go away from what they are used to. They are expecting, and know what attacks to expect, from Thor and the other regulars. Throw a big Velociraptor, Apato, ankylocodon, Majunga or something in and you have them stumped. They have no expectation of what attack you are going to use or how to effectively counter them.
What really seems to throw opponents for a loop is a themed crew. All swap in, all immune, all raptor, all tanks, all long-necks… Just one after another. Yeah, it can fail on ya also if they have all counters, but worth the risk for me. When Green chicken was getting me frustrated, I threw in a crew of nullifiers, several of them immune. For the Rat in its heyday? Pinning strike. Or just throw a bunch of random non-meta creatures in and hit the button, ya never know.