It’s not bad, Jay is right on the money. Unless your build focused or you want to run all three neutral healing two drops it’s just not usually worth it. And even then there is usually in faction healing that gets chosen before it. It’s not bad it just has fierce competition and is last place.
Most decks also want to globe contest with two drops, plus rescue is just an awkward open in general.
As for MecHorn Variants you have a couple options. Mitoitic Omega, Apex/silver/omega, omega hatefurnace, or deci/spikes which can also probably fit silver. Or sometimes just silver. But basically it stays the same as I have things set up with just changing the alt win con packages.
Looks like your just trying to take midrange magmar as your alt win con which is sollid. But I would trade rescue and Haru for the golem package if thats your plan, so something like this:
If you want to keep Haru rather then going more midrange then this is probably what you need:
Or a Silver Deci/Spikes Variant: