Creatures are permanents....
That's just well known CCG terminology.
Creatures are creatures. Permanents are permanents.
No creature has the permanent symbol, nor can they be targeted by things like explosion.
Permanents have the little symbol like a pillar in the corner. Creatures do not. They have different places where they go on the board. Creatures are nothing like permanents...
As for the card, seems very interesting.
It won't always be positive, but that just makes it more interesting. It doesn't seem too strong, but it could add a lot to the game. I like it.