The gravity-defying skateboard only works when within 3 feet of a surface to orient towards. So if the snakes have open sky with no wall for our teen to drive up on, that negates it.Okay hear me out: in terms of comparative advantage we're pretty good against flying mobs. We have a gravity-defying skateboard, a magic yo-yo, and plenty of mundane ranged weaponry. Any ol' crawler can grab a 2x4 and smack a slime or something, but there should be more of these guys left than anything else.