Power of the Wild

Hello all, this is about the card “Power of the Wild”. I recently made a deck and had the card in it with Topior the dragon that makes 3/3 rush dudes from nature spells, and I was confused on why Power of the Wild isn’t a nature spell. It even specifically has a title after some natural thing, and has a picture of a beast, from which it would make sense you’re drawing power. Needless to say, I didn’t realize this on the turn I tried to make a play using it, and although I probably would have lost to the death knight anyway, it made me lose 100% of the time.
So I guess my suggestion or question would be, Why isn’t Power of the Wild a Nature Spell. And if it was overlooked and actually should be since the flavor seems appropriate, I’m pointing out that it currently isn’t a Nature Spell.

Whyyyy blizz whyyyy ??? Seems to be the top question nowadays…