I don't get it. I'm confused about the mechanics of the card Flanking Move. The card text says: "If you don't end this move adjacent to an enemy, take another turn." What does this mean "take another turn"?
It works as per keyword Cantrip, but with the mentioned limitation. Meaning you get to play another card if you don't end your movement next to an enemy.
You and Gary rotate turns playing one card each. So with Flanking Move, if you use it to escape an enemy or not close with one, you get to play a second card before Gary gets a turn to play a card. As Pengw1n mentioned, this is the effect that keyword Cantrip brings into play which allows for some potent two card combos.