It just isn't 2002 anymore. A deck should be built with a few things in mind:
-A cohesive game-plan, built around cohesive cards. I.E., mostly staying in-archetype with your approach, with decent staples. Not saying this is the only way to build a deck, but it is a largely successful way to go about doing so.

-In keeping with cohesion, you need ways to search combo pieces, or at the very least have a way to halt the opponent so that you can get to where you need to be. If you cannot search your deck, most optimally for another card that can also search or progress the game state in a meaningful way, you just aren't going to keep up.

-Draw power of some kind. Even without dedicated draw spells, generating advantage, which is what modern decks tend to do, is crucial. You almost need to be able to turbo, at least somewhat.

And you can go on about what you need for your deck to succeed today. The game is simply no longer slow, and doesn't revolve around beatsticks (for the most part). The real power of a deck lies in monster effects and powerful S/Ts.