I don’t think Scythe Leopard will be the next Steppe Lynx, but it does have some potential. I’m not sure about the Undergrowth Champion. There must be some reason it was made a mythic, but I’m not sure I see it. Still, I would like to test it. The thing is, there will be a suite of removal that is popular and it is going to have to react to what is happening in the metagame. Is it going to be good? Are people going to have to rely on something to kill all the big Eldrazi, perhaps this little guy can get through. Perhaps the triggers are just valuable enough to play it anyway. After all, it can quite easily grow beyond Languish.
It would be nice to get the Spell Mastery in Nissa’s Pilgrimage to work, but that’s not going to be a thing.