Garchomp doesn't always have Fire Blast. Does that mean it's okay to switch in Skarmory? It doesn't always have Crunch. Is it okay to switch in Cresselia? Fire Fang->Bronzong?Unfortunately, it doesn't have all those HPs at once.
Sure, that sounds fair.Toxic Stall Cresslia might work.
This doesn't work on speed centered pokemon. Toxic vs Toxic will just hurt both of you, HP rock vs HP rock is a speed gamble, and HP rock vs Toxic is a gamble on exactly how bulky this pokemon is.If you predict correctly (or even if you don't, since only HP rock and Overheat do much of anything), the Pokemon itself functions as a perfectly viable counter to itself. Bring it in on Leaf Storm, Leech Seed, or HP not Rock and then force it out with Toxic/HP Rock/Whatever we end up giving this Pokemon.
More importantly, if the premier counter for this pokemon is this pokemon, that's just even more reason to use it, driving up its usage and centralizing the metagame. A pokemon should never be considered a counter for itself even if it can.
Deck Knight and HeliosAlso, who said we're giving this Pokemon both Leaf Storm and Overheat?
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I have finished rough versions of my concept art for this pokemon if anyone is interested.
Pre-evo:
http://i198.photobucket.com/albums/aa79/Toy_Box/Plantlioncub.png
Female:
http://i198.photobucket.com/albums/aa79/Toy_Box/Plantlioness.png
Male:
http://i198.photobucket.com/albums/aa79/Toy_Box/Plantlion.png