It’s not a big deal , but Bare Hand is onto something here. Just an observation, really. But on first level, why would shoving an alligator or a frog into a water-filled pit kill them? And if you go there, why snakes? Snakes IRL are good swimmers, so in-game they could just be “shoved” ACROSS the water-pit (of any width). The firebug could generate a cloud of steam and a hit/defense penalty for whomever is caught in it.
How about “shove a firebug into the water next to swampthing (ooo, hot! hot!) and drive it away 2 spaces in a random direction”?
“flavors” like that which don’t incur bonuses or penalties… well, you might leave those out of the “rules” descriptions and let players discover them (a little like the “skewer a slime”, a cool random foible that I and at least one other player discovered , because, wait, slimes cannot be killed by std weapons, except…!! … sigh… alas, it turned out to be a programming bug). It adds to the fun and could create “buzz”, like people creating tips and tricks pages for the game. yes, it’s me again, spitballin’