New deck with Skarmory seems OP

https://preview.redd.it/v6vd82dh5rfe1.png?width=715&format=png&auto=webp&s=32a34d732731fc9dab62222d6760068f4b364df8

Skarmory is 80HP basic, that for 1 Steel energy does: 20 damage, and if Skarmory has a tool, +30 damage.
Meaning that Skarmory turn 1 for 1 energy does 50 damage + 20 from rocky helmet if it is hit (you want to get rid of it, so thats 20 more damage for 1 energy , equaling 70 damages for 2 cards and one energy . Seems insane, no?

EDIT: Wording - Changed "mana" for "energy"
Erika - Doesnt work for non-Grass pokemon. 2 free slots for other stuff.