While there are plenty of solid Rockets Pokemon (as youve seen), it makes it a little difficult to use any of the very powerful supporting Pokemon available to other decks
Have fun!
Note: Foils are a special case, since they represent higher levels of rarity vs the non-foil version, but are much more desirable in some formats (Vintage, Legacy, Modern, EDH), than in others (Standard, Casual)
In a split second, your creatures can die, your artifacts can be shattered, and your opponent can win the game
Once again, attacking alone suggests either the exalted mechanic or some of the Kamigawa: Neon Dynasty Samurai which trigger on attacking alone
The first thing thats good about the engine is it in general can help make a deck more consistent